AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

In this review the methods for preparing iodoperfluoroalkanes and their chemical properties, namely, radical addition to the carbon–carbon multiple bonds of unsaturated compounds with functional groups, reactions with elements of groups IV–VI and their compounds, cleavage of single bonds by an Rf radical, oxidation of iodoperfluoroalkanes with degradation of the perfluoroalkyl chain or formation of iodonium derivatives, the formation of charge-transfer complexes, and α-halodefluorination reactions are examined. The uses of iodoperfluoroalkanes are described. The bibliography includes 285 references.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Nucleophilic iodofluorination of perfluorovinyl methyl (I) and perfluorovinyl propyl (II) ethers by iodine chloride in nitrobenzene or sulfolan afforded 1-iodoperfluoro-1-methoxyethane (III) and 1-iodoperfluoro-l-propoxyethane in yields of 65 and 77%, respectively. In addition to compound (III), the reaction of perfluorovinyl methyl ether afforded two side products: l-iodo-2-chloroperfluoro-1-methoxyethane and 2-iodo-l-chloroperfluoro-1-methoxyethane. The latter products are formed via a radical reaction, which takes place under drastic conditions. On the basis of quantum chemical calculations of (I), (II), and the two anions formed from (I), CF3OCFCF3 (VI) and CF3OCF2CF2 (VII), it is proposed that nucleophilic iodofluorination of perfluoroalkyl vinyl ethers involves the formation of thermodynamically more stable anions. The higher reactivity of (I) compared with (II) is in accord with the energy of the lowest unoccupied molecular orbitals and the charge density on the CF2 carbon atoms.19F NMR spectra of the synthesized products are shown.

To examine the effects of polyfluoroalkyl substituents on the neurotropic and immunotropic activities of silantranes, 1-(2'-polyfluoroalkyl-1'-iodoethyl)silatranes were synthesized. The compounds were shown to affect the basic cell links of an immune response. The range of antigenic properties indicate that some compounds in the series should be thoroughly examined as immune regulators in immune deficiency predominantly showing suppressive activity.

The direct halodefluorination of perfluoroacyl fluorides holds considerable interest in both synthetic and theoretical studies. However, the great strength of the C-F bond at the carbonyl carbon atom in comparison with the analogous C-Cl and C-Br hinders such transformations [1, 2]. In the case of iododefluorination, such reactions have not even been reported.

ChemInformVolume 21, Issue 29 Preparative Organic Chemistry ChemInform Abstract: Unexpected Formation of Tertiary Chloroperfluoroalkanes During the Reaction of Iodine Chloride with Branched Perfluoroalkenes. T. I. NAZARENKO, T. I. NAZARENKO Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this authorL. E. DEEV, L. E. DEEV Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this authorV. G. PONOMAREV, V. G. PONOMAREV Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this authorK. I. PASHKEVICH, K. I. PASHKEVICH Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this author T. I. NAZARENKO, T. I. NAZARENKO Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this authorL. E. DEEV, L. E. DEEV Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this authorV. G. PONOMAREV, V. G. PONOMAREV Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this authorK. I. PASHKEVICH, K. I. PASHKEVICH Otdel tonkogo org. sint. inst. khim. Bashk. nauchn. tsentra Ural. otd. AN SSSR, SverdlovskSearch for more papers by this author First published: July 17, 1990 https://doi.org/10.1002/chin.199029095Read the full textAboutPDF 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. Volume21, Issue29July 17, 1990 RelatedInformation

ChemInformVolume 21, Issue 18 Preparative Organic Chemistry ChemInform Abstract: Polar Addition Reaction of Perfluoro-tert-hexyl Iodide (I) with Alkenes (II), (IV) and Alkynes (VI). S. I. PLETNEV, S. I. PLETNEV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorS. M. IGUMNOV, S. M. IGUMNOV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorI. N. ROZHKOV, I. N. ROZHKOV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorG. D. REMPEL', G. D. REMPEL' Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorV. I. PONOMAREV, V. I. PONOMAREV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorL. E. DEEV, L. E. DEEV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorV. S. SHAIDUROV, V. S. SHAIDUROV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this author S. I. PLETNEV, S. I. PLETNEV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorS. M. IGUMNOV, S. M. IGUMNOV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorI. N. ROZHKOV, I. N. ROZHKOV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorG. D. REMPEL', G. D. REMPEL' Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorV. I. PONOMAREV, V. I. PONOMAREV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorL. E. DEEV, L. E. DEEV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this authorV. S. SHAIDUROV, V. S. SHAIDUROV Inst. elementoorg. soedin. im. Nesmeyanova AN SSSR, MoskvaSearch for more papers by this author First published: May 1, 1990 https://doi.org/10.1002/chin.199018118AboutPDF 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. Volume21, Issue18May 1, 1990 RelatedInformation

ChemInformVolume 21, Issue 46 Preparative Organic Chemistry ChemInform Abstract: Unexpected Transformation of Fluorine-Containing CH Acids on Reaction with Iodine Chloride. V. G. PONOMAREV, V. G. PONOMAREV Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorP. V. PODSEVALOV, P. V. PODSEVALOV Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorT. I. NAZARENKO, T. I. NAZARENKO Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorL. E. DEEV, L. E. DEEV Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorK. I. PASHKEVICH, K. I. PASHKEVICH Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this author V. G. PONOMAREV, V. G. PONOMAREV Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorP. V. PODSEVALOV, P. V. PODSEVALOV Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorT. I. NAZARENKO, T. I. NAZARENKO Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorL. E. DEEV, L. E. DEEV Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this authorK. I. PASHKEVICH, K. I. PASHKEVICH Inst. khim. Bashk. nauchn. tsentra Ural. otd. Akad. nauk SSSR, SverdlovskSearch for more papers by this author First published: November 13, 1990 https://doi.org/10.1002/chin.199046127AboutPDF 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 No abstract is available for this article. Volume21, Issue46November 13, 1990 RelatedInformation

On the basis of half-wave potential values E1/2 it was shown that perfluoroalkyl halides have pronounced oxidative properties in comparison with unfluorinated analogs. Tertiary perfluoroalkyl iodides, having a higher oxidation potential than iodine, react with I− by a scheme including one-electron transfer.

The effective charges on the atoms in molecules of perfluoroalkyl halides of general formula (CF3)nCF3−nX (X=Cl, Br, I) have been calculated by the AM1 semiempirical method. In polar solvents perfluoro-tert-hexyl iodide is reduced under the action of alkenes and aromatic hydrocarbons to form 2-hydroperfluoro-2-methyl-pentane and perfluoro-2-methyl-2-pentene. In ethyl acetate the regio- and stereo-specific addition of perfluoro-tert-hexyl iodide to alkenes, butadiene, and alkynes takes place, which is associated with the realization of a polar ion-radical mechanism for the reaction.

Perfluorotert-butyl iodide is formed in high yield upon pyrolysis of hexafluoropropylene with perfluoromethyl iodide. Perfluorotert-butyl iodide is also formed in low yield when perfluorotert-butyl bromide or chloroformate is treated with alkali metal iodides and also from bis(trifluoromethyl)diazirine and perfluoromethyl iodide.

ChemInformVolume 19, Issue 31 Preparative Organic Chemistry ChemInform Abstract: Novel Methods for the Preparation of Perfluoro-tert-butyl Iodide (III). L. E. DEEV, L. E. DEEV Inst. khim. Ural'skogo otd. AN SSSR, SverdlovskSearch for more papers by this authorT. I. NAZARENKO, T. I. NAZARENKO Inst. khim. Ural'skogo otd. AN SSSR, SverdlovskSearch for more papers by this authorK. I. PASHKEVICH, K. I. PASHKEVICH Inst. khim. Ural'skogo otd. AN SSSR, SverdlovskSearch for more papers by this author L. E. DEEV, L. E. DEEV Inst. khim. Ural'skogo otd. AN SSSR, SverdlovskSearch for more papers by this authorT. I. NAZARENKO, T. I. NAZARENKO Inst. khim. Ural'skogo otd. AN SSSR, SverdlovskSearch for more papers by this authorK. I. PASHKEVICH, K. I. PASHKEVICH Inst. khim. Ural'skogo otd. AN SSSR, SverdlovskSearch for more papers by this author First published: August 2, 1988 https://doi.org/10.1002/chin.198831102AboutPDF 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. Volume19, Issue31August 2, 1988 RelatedInformation