Polarized ethylene. V. Synthesis of 1??substituted indolizine, pyrazolo [1, 5??a] pyridine, and their related compounds using methoxyethylene derivatives

…, Y Ichihara, T Mori, C Kamio, A Hosomi

Index: Tominaga, Yoshinori; Ichihara, Yuichi; Mori, Tomoko; Kamio, Chizuko; Hosomi, Akira Journal of Heterocyclic Chemistry, 1990 , vol. 27, # 2 p. 263 - 268

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Citation Number: 26

Abstract

Abstract The reaction of pyridinium or isoquinolinium N-ylides with methoxy-substituted ethylenes gave the corresponding indolizine and pyrrolo [2, 1-a] isoquinoline derivatives bearing acetyl, aroyl, cyano, ester group at the 1-position in one step. Pyrazolo [1, 5-a] pyridine, pyrazolo [1, 5-a] quinoline, and pyrazolo [5, 1-a] isoquinolines were also synthesized in good yields from the corresponding aromatic N-imines and ...