Syntheses and chemistry of some dibenz [c, e] azepines

…, E Abu-Shakra, A Azeb, Z Aizenshtat…

Index: Weitzberg, Moshe; Abu-Shakra, Elias; Azeb, Abdullatif; Aizenshtat, Zeev; Blum, Jochanan Journal of Organic Chemistry, 1987 , vol. 52, # 4 p. 529 - 536

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Citation Number: 9

Abstract

&Methyl-, 5, 7-dimethyl-, and 5, 7-diphenyl-substituted and unsubstituted 5H-dibenz [c, e] azepines were prepared by two general routes from [l, l'-biphenyl]-2, 2'-dicarboxaldehyde. The unsubstituted dibenzazepine was converted into la, 9b-dihydrophenanthro [9, lO-b] azirine both by lithium diisopropylamide (LDA) and by UV irradiation. The disubstituted azepine derivatives failed, however, to undergo valence isomerization under such ...