作者:M. A. Hassan、S. A. Shiba、N. S. Harb、M. K. Abou-El-Regal、S. A. El-Metwally
DOI:10.1081/scc-120002505
日期:2002.1.1
ABSTRACT 3-Carbethoxy-5,7-dimethoxycoumarin (2) underwent Michael addition and addition–cyclization of some active methylene compounds under different reaction conditions to give the adducts (3–7). Addition of phenylmagnesium bromide onto (2) yielded the tertiary alcohol (8). Addition of ammonia derivatives on (2) afforded the 3-carboxamides (9a–c) and azine (10). Furthermore, alcoholysis and hydrolysis
摘要 3-Carbethoxy-5,7-二甲氧基香豆素 (2) 在不同反应条件下进行迈克尔加成和一些活性亚甲基化合物的加成环化反应,得到加合物 (3-7)。将苯基溴化镁加成到 (2) 上得到叔醇 (8)。在 (2) 上加入氨衍生物得到 3-羧酰胺 (9a-c) 和吖嗪 (10)。此外,醇解和水解产生香豆素(11a-c)。