Journal of the Chemical Society. Chemical communications p. 1880 - 1881 (1987)
Update date:2022-07-30
Topics:
Kurita, Jyoji
Kakusawa, Naoki
Tsuchiya, Takashi
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> ? cycloadducts; the indazoles (9) further react with the reagent to give the dimethyl phthalates (6) and the pyrazoles (7) via the <4+2> ? cycloadducts (10).
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