(AZA)INDOLIZINES AND ETHYL PROPIOLATE: [8+2] AND [1,10] CYCLIZATIONS
DOI:
https://doi.org/10.1007/4509Ключевые слова:
[8 2] cycloaddition, indolizine, imidazo[1, 2-a]pyridine, Sonogashira reactionАннотация
(Aza)indolizines reacted with ethyl propiolate regioselectively forming (aza)[2.2.3]cyclazines. The Sonogashira reaction of 5-iodo(aza)indolizines and acetylenes led to 5-ethynyl(aza)indolizines. In the case of indolizine derivative the by-product was ethynylcyclazine. The structures of [2.2.3]cyclazines were proved by X-ray structural analysis.Загрузки
Опубликован
2018-05-16
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Оригинальные статьи