Benzyl-Type Cation Initiated Nucleophilic Substitution on Furan and Thiophene by Using α-EWG Ketene S,S-Acetals as Nucleophiles
摘要:
An efficient method for introducing nucleophiles on furan and thiophene has been established via the in situ formation of benzyl-type carbocation, delocalization of the carbocation on heterocyclic ring, and nucleophilic trap of alpha-EWG ketene S,S-acetal sequence at the 5-position.
Benzyl-Type Cation Initiated Nucleophilic Substitution on Furan and Thiophene by Using α-EWG Ketene S,S-Acetals as Nucleophiles
作者:Jun Liu、Mang Wang、Shaoguang Sun、Qun Liu
DOI:10.1055/s-0032-1316753
日期:2012.9
An efficient method for introducing nucleophiles on furan and thiophene has been established via the in situ formation of benzyl-type carbocation, delocalization of the carbocation on heterocyclic ring, and nucleophilic trap of alpha-EWG ketene S,S-acetal sequence at the 5-position.