Reactions of 1H-1,2- and 1H-1,3-diazepines with dimethyl acetylenedicarboxylate
作者:Jyoji Kurita、Naoki Kakusawa、Takashi Tsuchiya
DOI:10.1039/c39870001880
日期:——
The title reactions yield the 3a, 7a-dihydropyrrolo[3,2-b]pyridines (2) and 3a,7a-dihydroindazoles (9), respectively, probably via the diazonine intermediates (4) and (8) derived from the initially formed [2 + 2]π cycloadducts; the indazoles (9) further react with the reagent to give the dimethyl phthalates (6) and the pyrazoles (7)via the [4 + 2]π cycloadducts (10).
标题反应可能分别通过最初形成的重氮基中间体(4)和(8)生成3a,7a-二氢吡咯并[3,2- b ]吡啶(2)和3a,7a-二氢吲唑(9)。[2 + 2]π个环加合物;的吲唑(9)还与所述试剂反应,得到二甲基邻苯二甲酸酯(6)和吡唑(7)经由所述[4 + 2]πcycloadducts(10)。
TSUCHIYA T.; KURITA J.; KOJIMA H., J. CHEM. SOC. CHEM. COMMUN., 1980, NO 10, 444-445
作者:TSUCHIYA T.、 KURITA J.、 KOJIMA H.
DOI:——
日期:——
KURITA, JYOJI;KOJIMA, HIROKAZU;TSUCHIYA, TAKASHI, CHEM. AND PHARM. BULL., 1981, 29, N 12, 3688-3695