An Efficient Route to 2-SubstitutedN-(1-Amino-3-methylpyrrol)amides by Ring-Opening Cyclization of Benzylidene- and Alkylidenecyclopropylcarbaldehydes with Hydrazides
摘要:
A convenient and efficient synthetic method for the construction of 2,3-disubstituted pyrrolamides in moderate to good Yields is established. The in situ generated water significantly accelerates the reaction rate. A possible mechanism involving the cascade ring-opening and thermal-induced rearrangement to produce the five-membered ring is proposed.
An Efficient Route to 2-Substituted<i>N</i>-(1-Amino-3-methylpyrrol)amides by Ring-Opening Cyclization of Benzylidene- and Alkylidenecyclopropylcarbaldehydes with Hydrazides
作者:Xiang-Ying Tang、Min Shi
DOI:10.1021/jo900730t
日期:2009.8.21
A convenient and efficient synthetic method for the construction of 2,3-disubstituted pyrrolamides in moderate to good Yields is established. The in situ generated water significantly accelerates the reaction rate. A possible mechanism involving the cascade ring-opening and thermal-induced rearrangement to produce the five-membered ring is proposed.