Relative autoxidation rates were determined for the cycloalkanes C7 to C12, the methyl cycloalkanes C6 to C9 and the ethyl cycloalkanes C5 to C9 (ring size in each case) by competitive oxidation of the cycloparaffins with cumene. In the case of the methyl and ethyl cycloalkanes the reactivities of the tertiary CH bonds could be calculated from the amounts of tertiary alcohols formed after LiAlH4 reduction of the oxidates. As expected, the CH reactivities are especially low in six-membered cycloparaffins and especially high in five-, seven- and eight-membered cycloparaffins. The CH reactivity of cyclododecane lies in the same order of magnitude as the reactivities of secondary CH bonds of normal paraffins.

Journal für Praktische Chemie/Chemiker-ZeitungVolume 337, Issue 1 p. 237-238 Procedures and Data Kinetics and Regioselectivity of the Autoxidation of Monocyclic Olefins and of Bicyclo[2.2.1]heptene Gerlinde Lauterbach, Gerlinde Lauterbach Merseburg, Institute of Technical and Macromolecular Chemistry of the Martin Luther University Halle-WittenbergSearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institute of Technical and Macromolecular Chemistry of the Martin Luther University Halle-WittenbergInstitut für Technische und Makromolekulare Chemie, Martin-Luther-Universität, D-06217 Merseburg, GermanySearch for more papers by this author Gerlinde Lauterbach, Gerlinde Lauterbach Merseburg, Institute of Technical and Macromolecular Chemistry of the Martin Luther University Halle-WittenbergSearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institute of Technical and Macromolecular Chemistry of the Martin Luther University Halle-WittenbergInstitut für Technische und Makromolekulare Chemie, Martin-Luther-Universität, D-06217 Merseburg, GermanySearch for more papers by this author First published: 1995 https://doi.org/10.1002/prac.19953370150Citations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. References 1 D. E. Van Sickle, F. R. Mayo, R. M. Arluck, J. Am. Chem. Soc. 87 (1965) 4824 10.1021/ja00949a028 CASWeb of Science®Google Scholar 2 K. Blau, U. Müller, W. Pritzkow, W. Schmidt-Renner, Z. Sedshaw, J. Prakt. Chem. 322 (1980) 915 10.1002/prac.19803220609 CASWeb of Science®Google Scholar 3 D. E. Van Sickle, F. R. Mayo, R. M. Arluck, J. Org. Chem. 32 (1967) 3680 10.1021/jo01286a090 CASWeb of Science®Google Scholar 4 Ch. Duschek, W. Grimm, M. Hampel, R. Jauch, W. Pritzkow, H. Rosner, J. Prakt. Chem. 317 (1975) 1027 10.1002/prac.19753170619 Web of Science®Google Scholar 5 R. G. Naick, W. Pritzkow, J. Rasche, J. Prakt. Chem. 319 (1977) 785 10.1002/prac.19773190514 CASWeb of Science®Google Scholar 6 M. Futu-Tangu, E. Lawson, W. Pritzkow, V. Voerkel, J. Prakt. Chem. 325 (1983) 545 10.1002/prac.19833250404 CASWeb of Science®Google Scholar 7 G. Lauterbach, W. Pritzkow, J. Prakt. Chem. 336 (1994) 83 10.1002/prac.19943360119 CASWeb of Science®Google Scholar Citing Literature Volume337, Issue11995Pages 237-238 ReferencesRelatedInformation

Journal für Praktische Chemie/Chemiker-ZeitungVolume 337, Issue 1 p. 416-417 Procedures and Data Kinetic Studies of the Liquid-phase Oxidation of cis-pinane and of adamantane with molecular oxygen† Gerlinde Lauterbach, Gerlinde Lauterbach Merseburg, Martin-Luther-University Halle-Wittenberg; Institute of Technical and Macromolecular ChemistrySearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Martin-Luther-University Halle-Wittenberg; Institute of Technical and Macromolecular ChemistryInstitut für Technische und Makromolekulare Chemie, der Martin-Luther-Universität, Geusaer Straße, D-06217 Merseburg, GermanySearch for more papers by this author Gerlinde Lauterbach, Gerlinde Lauterbach Merseburg, Martin-Luther-University Halle-Wittenberg; Institute of Technical and Macromolecular ChemistrySearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Martin-Luther-University Halle-Wittenberg; Institute of Technical and Macromolecular ChemistryInstitut für Technische und Makromolekulare Chemie, der Martin-Luther-Universität, Geusaer Straße, D-06217 Merseburg, GermanySearch for more papers by this author First published: 1995 https://doi.org/10.1002/prac.19953370189Citations: 6 † Dedicated to Prof. Dr. G. Zimmermann on the Occasion of his 65th Birthday AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume337, Issue11995Pages 416-417 RelatedInformation

The individual steps in the reactions of cyanuric chloride with n-butyl amine in N-methyl pyrrolidone (NMP) and with morpholine in isopropanol (i-PrOH) were followed kinetically. The ratio of the exchange rates of the first, the second and the third chlorine atom was unexpectedly high in both cases. The reactions of n-butylamino dichlorotriazine with several amines were studied kinetically both in NMP and in i-PrOH. Linear free-energy relationships exist both between our values in NMP and in isopropanol and between our values and reaction rates of p-nitro fluorobenzene with the corresponding amines (in DMSO) determined by Suhr.

Journal für Praktische Chemie/Chemiker-ZeitungVolume 336, Issue 2 p. 166-168 Procedure and Data Oxidation of asymmetric p-dialkylbenzenes in the presence of various catalysts Gerlinde Lauterbach, Gerlinde Lauterbach Merseburg, Institute of Technical Chemistry; Martin-Luther-University of Halle-WittenbergSearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institute of Technical Chemistry; Martin-Luther-University of Halle-WittenbergInstitut für Technische Chemie der Martin-Luther-Universität, (Standort Merseburg), Geusaer Straße, D–06217 MerseburgSearch for more papers by this authorKathleen Wenzel, Kathleen Wenzel Merseburg, Institute of Technical Chemistry; Martin-Luther-University of Halle-WittenbergSearch for more papers by this author Gerlinde Lauterbach, Gerlinde Lauterbach Merseburg, Institute of Technical Chemistry; Martin-Luther-University of Halle-WittenbergSearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institute of Technical Chemistry; Martin-Luther-University of Halle-WittenbergInstitut für Technische Chemie der Martin-Luther-Universität, (Standort Merseburg), Geusaer Straße, D–06217 MerseburgSearch for more papers by this authorKathleen Wenzel, Kathleen Wenzel Merseburg, Institute of Technical Chemistry; Martin-Luther-University of Halle-WittenbergSearch for more papers by this author First published: 1994 https://doi.org/10.1002/prac.19943360213AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Volume336, Issue21994Pages 166-168 RelatedInformation

Journal für Praktische Chemie/Chemiker-ZeitungVolume 336, Issue 6 p. 558-560 Procedure and Data 4-Nitro benzylchloride as a nucleophile in VNS reactions Leang Chhaly, Leang Chhaly Merseburg, Martin-Luther-University Halle-Wittenberg, Institute of Technical and Macromolecular ChemistrySearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Martin-Luther-University Halle-Wittenberg, Institute of Technical and Macromolecular ChemistryInstitute of Technical and Macromolecular Chemistry, Martin-Luther-University Halle-Wittenberg, Geusaer Straße, D-06217 Merseburg, GermanySearch for more papers by this author Leang Chhaly, Leang Chhaly Merseburg, Martin-Luther-University Halle-Wittenberg, Institute of Technical and Macromolecular ChemistrySearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Martin-Luther-University Halle-Wittenberg, Institute of Technical and Macromolecular ChemistryInstitute of Technical and Macromolecular Chemistry, Martin-Luther-University Halle-Wittenberg, Geusaer Straße, D-06217 Merseburg, GermanySearch for more papers by this author First published: 1994 https://doi.org/10.1002/prac.19943360619Citations: 8AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume336, Issue61994Pages 558-560 RelatedInformation

Journal für Praktische Chemie/Chemiker-ZeitungVolume 336, Issue 6 p. 555-557 Procedure and Data Studies on the Oxidative SNH Amination of aromatic nitro compounds Prof. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institute of Technical and Macromolecular Chemistry Martin-Luther-University Halle-WittenbergInstitute of Technical and Macromolecular Chemistry, Martin-Luther-University Halle-Wittenberg, Geusaer Straße, D-06217 Merseburg, GermanySearch for more papers by this authorFrank Sebald, Frank Sebald Merseburg, Institute of Technical and Macromolecular Chemistry Martin-Luther-University Halle-WittenbergSearch for more papers by this author Prof. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institute of Technical and Macromolecular Chemistry Martin-Luther-University Halle-WittenbergInstitute of Technical and Macromolecular Chemistry, Martin-Luther-University Halle-Wittenberg, Geusaer Straße, D-06217 Merseburg, GermanySearch for more papers by this authorFrank Sebald, Frank Sebald Merseburg, Institute of Technical and Macromolecular Chemistry Martin-Luther-University Halle-WittenbergSearch for more papers by this author First published: 1994 https://doi.org/10.1002/prac.19943360618Citations: 3AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat References 1 This publication does not deal with VNS aminations which are thoroughly described by A. R. Katritzky, K. S. Laurenzo (J. Org. Chem. 51 (1986) 5039; J. Org. Chem. 53 (1988) 3978) and M. Makosza, M. Bialecki (J. Org. Chem. 57 (1992) 4784) 2 R. Huisgen, H. Rist, Liebigs. Ann. Chem. 594 (1955) 159 3 F. W. Bergstrom, I. M. Granara, V. Erickson, J. Org. Chem. 7 (1942) 98 4 S. S. Gandhi, M. S. Gibson, M. L. Kaldas, S. M. Vines, J. Org. Chem. 44 (1979) 4705 5 M. K. Stern, F. D. Hileman, J. K. Bashkin, J. Am. Chem. Soc. 114 (1992) 9237 6 A. Lobeda, Dissertation, Martin-Luther-Universität Halle-Wittenberg 1993 7 L. Chhaly, Dissertation, Martin-Luther-Universität Halle-Wittenberg 1993 8 L. Chhaly, W. Pritzkow, J. Prakt. Chem., 336 (1994) 558 9 M. Martynoff, Bull. Soc. Chim. Fr. 1951, 214 10 K. H. Mertens, Ber. Dtsch. Chem. Ges. 19 (1886) 2123 11 P. A. Valton, J. Chem. Soc. 127 (1924) 40 12 J. H. Gorvin, J. Chem. Soc., Chem. Commun. 1985, 238 13 O. Kym, M. Ringer, Ber. Dtsch. Chem. Ges. 48 (1915) 1671 14 A. Reissert, G. Goll, Ber. Dtsch. Chem. Ges. 38 (1905) 90 15 F. Reverdin: P. Crepieux, Ber. Dtsch. Chem. Ges. 36 (1903) 29 16 J. F. T. Berliner, O. E. May, J. Am. Chem. Soc. 47 (1925) 2350 17 E. Bamberger, R. Hübner, Ber. Dtsch. Chem. Ges. 36 (1903) 3803 18 V. Vesely, J. Dvorak, Bull. Soc. Chim. Fr. [4], 33 (1924) 333 19 H. F. Bassilios, M. Shawky, Bull. Soc. Chim. Fr. 1954, 151 20 M. Day, A. T. Peters, J. Soc. Dyers Colour 83 (1967) 137 [ Chem. Abstr. 68 (1968) 14050] 21 E. Bamberger, Ber. Dtsch. Chem. Ges. 29 (1896) 102 22 H. O. Kalinowski, S. Berger, S. Braun, 13C-NMR-Spektroskopie, Stuttgart, New York. Georg-Thieme-Verlag 1984 23 A. K. Bose, P. R. Srinivasan, Tetrahedron 31 (1975) 3025 24 W. Bremser, L. Ernst, B. Franke, R. Gerhards, A. Hardt, Carbon-13 NMR Spectral Data, 4th edition Weinheim. VCH Verlagsgesellschaft 1987, Nr. 20244 25 L. Ernst, J. Magn. Resonance 22 (1976) 279 26 see [24], Nr. 23673 27 see [24], Nr. 0821 28 see [24], Nr. 0820 Citing Literature Volume336, Issue61994Pages 555-557 ReferencesRelatedInformation

Eight defined primary and secondary alkylhydroperoxides were decomposed in n-alkanes as the solvent, mostly in the presence of manganese stearate. In all cases the corresponding alcohols and carbonyl compounds were formed as the main products with yields of 60–90%. Besides, difunctional products were formed by an intramolecular H-transfer in the alkoxy radicals corresponding to the starting hydroperoxides. Products possibly formed by an intramolecular H-transfer in the corresponding alkylperoxy radical could be found only in the case of 4-methyl-2-hydroperoxy pentane. The amount of products formed by intramolecular H-transfer depended on the nature of the C-H bond in δ-position to the original hydroperoxy group and lay between 4% (primary C-H in the case of 4-hydroperoxy heptane) and 13% (tertiary C-H in the case of 2-hydroperoxy-5-methyl hexane) with respect to the starting hydroperoxide. The amount of products formed by oxidative attack of the alkoxy and alkylperoxy radicals at the normal paraffins used as the solvents was unexpectedly low (always less than 10% with respect to the starting hydroperoxide). An increment system is proposed for the calculation of 13C-nmr shifts in alkyl hydroperoxides.

Journal für Praktische Chemie/Chemiker-ZeitungVolume 336, Issue 1 p. 83-85 Procedure and Data Competitive Oxidation of cis/trans isomeric derivatives of cyclohexane with cumene. Relative reactivities of axial and equatorial tertiary C-H bonds Gerlinde Lauterbach, Gerlinde Lauterbach Halle-Wittenberg, Institute of Technical Chemistry, Martin-Luther-UniversitySearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Halle-Wittenberg, Institute of Technical Chemistry, Martin-Luther-UniversityInstitut für Technische und Makromolekulare Chemie der Martin-Luther-Universität, Geusaer Straße, D–06217 Merseburg, GermanySearch for more papers by this author Gerlinde Lauterbach, Gerlinde Lauterbach Halle-Wittenberg, Institute of Technical Chemistry, Martin-Luther-UniversitySearch for more papers by this authorProf. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Halle-Wittenberg, Institute of Technical Chemistry, Martin-Luther-UniversityInstitut für Technische und Makromolekulare Chemie der Martin-Luther-Universität, Geusaer Straße, D–06217 Merseburg, GermanySearch for more papers by this author First published: 1994 https://doi.org/10.1002/prac.19943360119Citations: 7AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume336, Issue11994Pages 83-85 RelatedInformation

Journal für Praktische Chemie/Chemiker-ZeitungVolume 335, Issue 8 p. 705-707 Procedures and Data Synthesis of Phenylacetic Acid by Oxidation of Phenyl Acetaldehyde with Molecular Oxygen† Prof. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institut für Technische Chemie der Technischen HochschuleMartin-Luther-Universität Halle-Wittenberg Institut für Technische und Makromolekulare Chemie Geusaer Straße D–06127 MerseburgSearch for more papers by this authorVolkmar Voerckel, Volkmar Voerckel Merseburg, Institut für Technische Chemie der Technischen HochschuleSearch for more papers by this authorHeike Weber, Heike Weber Merseburg, Institut für Technische Chemie der Technischen HochschuleSearch for more papers by this author Prof. Dr. Wilhelm Pritzkow, Corresponding Author Prof. Dr. Wilhelm Pritzkow Merseburg, Institut für Technische Chemie der Technischen HochschuleMartin-Luther-Universität Halle-Wittenberg Institut für Technische und Makromolekulare Chemie Geusaer Straße D–06127 MerseburgSearch for more papers by this authorVolkmar Voerckel, Volkmar Voerckel Merseburg, Institut für Technische Chemie der Technischen HochschuleSearch for more papers by this authorHeike Weber, Heike Weber Merseburg, Institut für Technische Chemie der Technischen HochschuleSearch for more papers by this author First published: 1993 https://doi.org/10.1002/prac.19933350810Citations: 1 † Dedicated to Prof. Dr. Werner Schroth on the occasion of his 65th birthday AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat References 1 H. Dellweg: Biotechnologie, Grundlagen und Verfahren. VCH-Verlagsanstalt, Weinheim 1987 2 Y. Matsuzawa, T. Yamashita, S. Nikagawa, Jap. Pat. 7 242 278 (1972); Chem. Abstr. 78 (1973) 13 58 78 3 C. L. G. Huch, M. Mihai, R. E. Vasilescu, A. Krasovchi, P. Kotofana, N. Stan, Rum. Pat. 76 787 (1981); Chem. Abstr. 99 (1983) 12 18 81 4 K.-P. Fuchs, M. Futu-Tangu, A. Gadzhiev, W. Pritzkow, Miltitzer Berichte 1980, 7 5 N. A. Clinton, R. A. Kenley, T. G. Traylor, J. Am. Chem. Soc. 97 (1975) 3746; 3752; 3757 6 L. Lunazzi, K. U. Ingold, J. C. Scaiano, J. Phys. Chem. 87 (1983) 529 7 N. J. Turro, I. R. Gould, B. H. Baretz, J. Phys. Chem. 87 (1983) 531 8 M. Gay (Rhone-Poulenc S. A.): Dtsch. Offen. 2 136 481 (1972); Chem. Abstr. 76 (1972) 11 29 13 9 V. Haisman, P. Stampachova, J. Vcelak, V. Chvalowsky: Oxid. Commun 4 (1983) 229 10 L. Berg, J. M. Harrison, C. W. Montgomery, Ind. Eng. Chem. 38 (1946) 1150 Citing Literature Volume335, Issue81993Pages 705-707 ReferencesRelatedInformation

Nitrobenzene, α-nitronaphthalene, m-dinitrobenzene, 1,3,5-trinitrobenzene, m-nitrobenzophenone, m-nitrobenzonitrile, methyl m-nitrobenzoate and m-nitro diphenylsulphone can be hydroxylated with cumene or tert-butyl hydroperoxide in dipolar aprotic solvents in the presence of strong bases. The hydroxyl group is introduced preferably in p-position to the nitro group. Attempts to hydroxylate benzophenone, anthraquinone, 2-ethyl anthraquinone, anthraquinone 2-sulphonate, benzonitrile and diphenyl sulphone under the same conditions failed. 1-Nitroanthraquinone delivered 1-hydroxy, 1,2-dihydroxy and 1,4-dihydroxy anthraquinone.

Products of the reaction of propane-2-sulphonic acid p-cresylester with sodium butoxide in butanol are the sodium salt of propan-2-sulphonic acid, di-n-butyl ether, p-cresyl-n-butyl ether and p-cresol. The reaction proceeds via propane-2-sulphonic acid n-butylester which is formed from the starting compound by an elimination-addition (sulphene) mechanism. The elimination step is an E1-cB reaction.

Bleaching activators are compounds with O- or N-bounded acetyl groups which are able to react with the strongly nucleophilic hydroperoxy anion to yield peroxyacetic acid. The peroxyacetic acid is decomposed in weakly basic media in a bimolecular reaction forming singlet oxygen. The maximum of the decomposition rate of peroxyacetic acid at pH = 8.3 is also the maximum of bleaching activity of systems containing both bleaching activators and sodium perborate; therefore singlet oxygen must play a decisive role in the activated bleaching of textiles during the washing process. Different bleaching activators can be compared both on the basis of their reaction rates with hydrogen peroxide in weakly basic media and on the basis of their reaction rates with piperidine in dioxane. A great number of potential bleaching activators was studied and compared.

The pinanes are preferably attacked at the tertiary C-H bond in 2-position, but products of the oxidative attack at the secondary C-H bonds in 3- and 4-position are also found. At 100°C cis-pinane is attacked more easily than trans-pinane (kcis : ktrans = 6.4), the relative rates of attack at the secondary C-H bonds in positions 3 and 4 with respect to the tertiary C-H bond in 2-position were also determined (in cis-pinane ksec: ktert = 0.027; in trans-pinane ksec : ktert = 0.20). After the attack at the 2-C-H bond the radical formed can either react with oxygen to form the corresponding cis- and trans-peroxy radicals and further to give cis- and trans-2-hydroperoxy pinane or fragmentate to the monocyclic radical derived from α-terpinene, giving as final products α-terpinene hydroperoxide and the bicyclic 8-hydroperoxy 4,4,8-trimethyl 2,3-dioxabicyclo[3.3.1]nonane. The corresponding alcohols were found after reduction with sodium sulphite. The oxidation at position 2 of the pinanes delivers not only the cis- and trans-hydroperoxide but also, as shortlived intermediates, the corresponding 2-pinanyloxy radicals. These radicals fragmentate forming a carbon radical with cyclobutane structure whose oxidation products were identified. Besides fragmentation of the 2-pinanyloxy radical also an intramolecular H-transfer from the methyl group in 9-position to the oxygen of the trans-2-pinanyloxy radical takes place leading to 9-hydroperoxy trans-pinane-2-ol.

Conclusions concerning the reactivities of alkylaromatic hydrocarbons in autoxidations are possible neither on the basis of the oxidizabilities nor on the basis of the chain propagation constants kp. In order to compare different alkylaromatic hydrocarbons, their rate constants with a definite peroxy radical, for example with the cumylperoxy radical, must be determined. Another possibility is the evaluation of relative rate constants by competitive oxidations of binary mixtures of hydrocarbons. These constants are not related to a definite peroxy radical. Nevertheless, these relative rate constants are real measures of the reactivities. If one also determines the composition of the reaction mixtures, which is especially convenient after LiAlH4 reduction, then it is possible to evaluate relative reactivities of the single C-H bonds, for example in relation to the tertiary C-H bond of cumene. This was done in our studies, and a great number of single bond reactivities is given in this survey. It is therefore possible to evaluate the activating effect of phenyl groups on different types of α-C-H bonds, and steric effects are also perceptible. In o-substituted isopropyl aromatics, a desactivation by steric hindrance of mesomerism takes place.

The bleaching activators 1,5-diacetyl 2,4-dioxo-hexahydro-1,3,5-triazine (DADHT), tetraacetyl ethylenediamine (TAED), tetraacetyl glycolurile (TAGU), N,N′-diacetyl N,N′-dimethyl urea (DDU) and pentaacetyl glucose (PAG) are efficient acetylating agents which convert primary and secondary amines into their N-acetyl derivatives. The rates of the reactions of the bleaching activators mentioned with piperidine were determined in the temperature range 20 to 90°C using dioxane as the solvent. The kinetic constants can be regarded as rough measures of the activity of the bleaching activators.

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During the thermal decomposition of cumene hydroperoxide at about 125°C in phenyl cycloalkanes as solvents, the solvents are attacked, preferably at the tertiary C  H bonds. Up to 70% (with regard to the decomposed hydroperoxide) of oxidation products of the phenyl cycloalkanes are obtained. The main oxidation products are the corresponding 1-phenyl cycloalkanols, but relatively large amounts of phenyl alkyl ketones with the same number of carbon atoms are also formed, probably via a further oxidation of the 1-phenyl cycloalkanols.