The Reactions of Tropone Tosylhydrazone Sodium Salt with Acetylene Derivatives Possessing Electron-Withdrawing Groups: A Novel Method of Synthesis of 1<i>H</i>-1,2-Benzodiazepine Derivatives
作者:Katsuhiro Saito
DOI:10.1246/bcsj.60.2105
日期:1987.6
Reactions of tropone tosylhydrazone sodium salt with dimethyl and diethyl acetylenedicarboxylate gave dimethyl and diethyl 1H-1,2-benzodiazepin-3,4-dicarboxylate, respectively. The same reactions, but using ethyl acetylenecarboxylate and 3-butyn-2-one, afforded ethyl 1H-1,2-benzodiazepin-4-carboxylate and 4-acetyl-1H-1,2-benzodiazepine, respectively, accompanied by 8-azaheptafulvene derivatives derived
SARRO, KATSUHIRO, BULL. CHEM. SOC. JAP., 60,(1987) N 6, 2105-2109
作者:SARRO, KATSUHIRO
DOI:——
日期:——
REACTIONS OF TROPONE TOSYLHYDRAZONE SODIUM SALT WITH ACETYLENE DERIVATIVES: A NOVEL SYNTHESIS OF 1<i>H</i>-1,2-BENZODIAZEPINE DERIVATIVES
作者:Katsuhiro Saito
DOI:10.1246/cl.1983.463
日期:1983.4.5
The reactions of tropone tosylhydrazone sodium salt (1) with acetylenes (3a–3c) afforded 1H-1,2-benzodiazepines (8a–8c), which are considered to be formed by additions of diazotropylidene (2) with the acetylenes via norcaradiene intermediates (6).