ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Hydrazine-bridged [14]Annulenes: A Simple Synthesis of 4,9-Bis(diacetylamino)-3,8-dicyano-10b,10c-diazadicyclopenta[ef,kl]heptaleneN,N-Bisuccinimid (5) reacts with (cyanomethylene)- or (äthoxycarbonylmethylene)triphenyl-phosphorane to give the 2,2′,5.5′-tetrasubstituted 1,1′-bipyrrols 7a, b. Condensation of 7a to 8 and subsequent dehydrogenating acetylation yields the diatropic title compound 9.
Notes:
N,N-Bisuccinimid (5) reagiert mit (Cyanmethylen)- bzw. (Äthoxycarbonylmethylen)triphenyl-phosphoran zu den 2,2′,5,5′-tetrasubstituierten 1,1′-Bipyrrolen 7a, b. Kondensation von 7a zum Enaminnitril 8 und anschließende dehydrierende Acetylierung führt zum substituierten diatropen 10b,10c-Diazadicyclopentaheptalen 9.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19731060605
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