AbstractESR. and, in part, ENDOR. studies are reported on the radical anions of 5,5′‐and 6,6′‐biazulenyl (1 and 2, resp.), as well as on their 1, 1′, 3, 3′‐tetradeuterioderivatives (1‐d4 and 2‐d4). The reduction processes of 1 and 2 leading to these radical anions (\documentclass{article}\pagestyle{empty}\begin{document}$ 1^{\ominus \atop \dot{}}$\end{document} and \documentclass{article}\pagestyle{empty}\begin{document}$ 2^{\ominus \atop \dot{}}$\end{document}) and the dianions ( equation image ) have been investigated by polarography and cyclic voltammetry. The half‐wave reduction potential of 1 and the π‐spin distribution in \documentclass{article}\pagestyle{empty}\begin{document}$ 1^{\ominus \atop \dot{}}$\end{document} are consistent with the model of two weakly interacting azulene π‐systems, whereas the analogous findings for 2 and \documentclass{article}\pagestyle{empty}\begin{document}$ 2^{\ominus \atop \dot{}}$\end{document} point to a strong interaction between two such systems. This difference can be traced to the distinct inequality ∥c65 ∥ « ∥ c66 ∥ in the LCAO coefficients c6μ at the centres μ=5 and 6 for the LUMO Ψ6 of azulene.
Abstract3‐Aminocrotonsäureester (Ia) und 3‐Aminocrotonnitril (Ib) kondensieren mit Vinamidinium‐Salzen (II) und Natriummethanolat oder mit 3,3‐Diäthoxy‐1‐dimethylaminopropenen (IV) in guten Ausbeuten zu Pyridin‐Derivaten (III) und (V).
Die Einwirkung von überschüssigem Natriumtetrahydroborat auf Polymethiniumsalze verläuft unter Reduktion der Iminium- und der Enamin-Doppelbindung. Substituierte 1,3-Diaminopropane (4a–q) werden durch die Boranatreduktion der Trimethiniumsalze 3a–k und der vinylogen Formamidine 51–q dargestellt. Reaction of Vinylogous Formamidinium Salts with Nucleophiles, III. On the Reduction of Polymethinium Salts with Sodium Tetrahydroborate. A Method for the Synthesis of Substituted 1,3-Diaminopropanes The action of sodium tetrahydroborate in excess on polymethinium salts proceeds by reduction of the double bonds of the iminium and enamine groups. Numerous substituted 1,3-diaminopropanes (4a–q) were prepared by boranate reduction of trimethinium perchlorates 3a–k and vinylogous formamidines 51–q.
AbstractAzulen‐2‐acetonitril (I) kondensiert mit 6‐Dimethylamino‐2‐dimethyliminomethylfulven‐perchlorat (II) in Chinolin in Gegenwart von Natriummethylat zum Azulenaminonitril (III), das beim Erhitzen auf 120‐130°C zum Azuleno(1,2‐f)azulen (IV) cyclisiert.
AbstractThe photoelectron (PE.) spectra of azuleno[l, 2, 3‐cd]phenalene (1) and azuleno‐ [5,6,7‐cd]phenalene(2) have been recorded. The first five bands of both compounds could be assigned to transitions corresponding to removal of electrons from 4a2, 6b1, 5b1, 3a2 and 4bl orbitals. This assignment is based mainly on a comparison between the observed ionization potentials and orbital energies calculated in a HMO and a PPP model.The UV./VIS. polarized absorption spectrum of 1 in the region 10000–45000 cm−1 has been measured by means of the stretched film technique. The measurements were performed in polyethylene sheets at 77°K. Several bands could be assigned to π* ← π transitions calculated by a PPP‐CI method.A comparison between the electronic structures of 1 and2 is made by means of a simple HMO diagram.
AbstractBiphenylen‐2‐acetonitril (I) kondensiert sich mit den Diazapentadieniumperchloraten (II) in Chinolin in Gegenwart von Natriummethylat bei 50‐70°C zu den Verbindungen (III), die bei Temperaturen von 145 ‐ 205°C zu den Benzo(b)biphenylenen (IV) cyclisieren.
Angewandte Chemie International Edition in EnglishVolume 13, Issue 11 p. 737-739 Communication A New Synthesis of Indolizines† Prof. Dr. Christian Jutz, Corresponding Author Prof. Dr. Christian Jutz Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this authorDr. Rudolf M. Wagner, Dr. Rudolf M. Wagner Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this authorDipl.-Chem. Hans-G. Löbering, Dipl.-Chem. Hans-G. Löbering Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this author Prof. Dr. Christian Jutz, Corresponding Author Prof. Dr. Christian Jutz Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this authorDr. Rudolf M. Wagner, Dr. Rudolf M. Wagner Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this authorDipl.-Chem. Hans-G. Löbering, Dipl.-Chem. Hans-G. Löbering Organisch-Chemisches Laboratorium der Technischen Universität, 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this author First published: November 1974 https://doi.org/10.1002/anie.197407371Citations: 21 † This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie. 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 Citing Literature Volume13, Issue11November 1974Pages 737-739 RelatedInformation
Angewandte Chemie International Edition in EnglishVolume 11, Issue 4 p. 315-318 Communication Synchronous Six-Electron Cyclization of Hexatriene Systems as a New Synthetic Principle for Preparation of Aromatic and Heteroaromatic Compounds† Prof. Dr. Christian Jutz, Prof. Dr. Christian Jutz Organisch-Chemisches Laboratorium der Technischen Universität, 8 München, Arcisstrasse 21 (Germany)Search for more papers by this authorDipl.-Chem. Rudolph M. Wagner, Corresponding Author Dipl.-Chem. Rudolph M. Wagner Organisch-Chemisches Laboratorium der Technischen Universität, 8 München, Arcisstrasse 21 (Germany)Organisch-Chemisches Laboratorium der Technischen Universität, 8 München, Arcisstrasse 21 (Germany)Search for more papers by this author Prof. Dr. Christian Jutz, Prof. Dr. Christian Jutz Organisch-Chemisches Laboratorium der Technischen Universität, 8 München, Arcisstrasse 21 (Germany)Search for more papers by this authorDipl.-Chem. Rudolph M. Wagner, Corresponding Author Dipl.-Chem. Rudolph M. Wagner Organisch-Chemisches Laboratorium der Technischen Universität, 8 München, Arcisstrasse 21 (Germany)Organisch-Chemisches Laboratorium der Technischen Universität, 8 München, Arcisstrasse 21 (Germany)Search for more papers by this author First published: April 1972 https://doi.org/10.1002/anie.197203151Citations: 49 † This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie. 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 Citing Literature Volume11, Issue4April 1972Pages 315-318 RelatedInformation
Angewandte Chemie International Edition in EnglishVolume 10, Issue 11 p. 808-809 Communication Simple Synthesis of Pyraceheptylene and Benzo[a]pyraceheptylene† Prof. Dr. Christian Jutz, Prof. Dr. Christian Jutz Organisch-Chemisches Laboratorium der Technischen Universität 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this authorDipl.-Chem. Erich Schweiger, Corresponding Author Dipl.-Chem. Erich Schweiger Organisch-Chemisches Laboratorium der Technischen Universität 8 München 2, Arcisstrasse 21 (Germany)Organisch-Chemisches Laboratorium der Technischen Universität 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this author Prof. Dr. Christian Jutz, Prof. Dr. Christian Jutz Organisch-Chemisches Laboratorium der Technischen Universität 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this authorDipl.-Chem. Erich Schweiger, Corresponding Author Dipl.-Chem. Erich Schweiger Organisch-Chemisches Laboratorium der Technischen Universität 8 München 2, Arcisstrasse 21 (Germany)Organisch-Chemisches Laboratorium der Technischen Universität 8 München 2, Arcisstrasse 21 (Germany)Search for more papers by this author First published: November 1971 https://doi.org/10.1002/anie.197108081Citations: 15 † This work has been supported by the Fonds der Chemischen Industrie and the Deutsche Forschungsgemeinschaft. 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 Volume10, Issue11November 1971Pages 808-809 RelatedInformation
Die Lokalisationsenergien L einer Anzahl konjugierter Polyene weisen auf ihre leichte Substituierbarkeit durch Vilsmeier‐Komplexe hin. Bei Kohlenwasserstoffen mit dem System des 2‐Vinyl‐butadiens‐(1.3) und 2‐Phenyl‐butadiens‐(1.3) gelingt Monoformylierung zu Imoniumsalzen. Isobutylen wird fünffach zu einem gelben Trikation substituiert, beim 2‐Phenyl‐propen konnten die Salze der Mono‐ und Triformylierung isoliert werden.
Angewandte ChemieVolume 70, Issue 9 p. 270-270 Zuschriften Synthese von Azulen-polyenalen Dr. C. Jutz, Dr. C. Jutz Organisch-Chemisches Institut der T. H. MünchenSearch for more papers by this author Dr. C. Jutz, Dr. C. Jutz Organisch-Chemisches Institut der T. H. MünchenSearch for more papers by this author First published: 7. Mai 1958 https://doi.org/10.1002/ange.19580700909Citations: 15AboutPDF ToolsRequest permissionAdd to favorites 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 Vgl. Naturwissenschaften 44, 352 [1957] u. Diese Ztschr. 69, 532 [1957]. 2 Vgl. Diese Ztschr. 69, 104 [1957]. Citing Literature Volume70, Issue97. Mai 1958Pages 270-270 This is the German version of Angewandte Chemie. Note for articles published since 1962: Do not cite this version alone. Take me to the International Edition version with citable page numbers, DOI, and citation export. We apologize for the inconvenience. ReferencesRelatedInformation