[1-(Phenylseleno)alkyl]stannanes−Mixed Selenium/Tin Analogs of Acetals: Preparation from α-Hydroxystannanes and Use for Generating Selenium-Stabilized Carbanions
作者:Shimal C. Fernandopulle、Derrick L. J. Clive、Maolin Yu
DOI:10.1021/jo8004292
日期:2008.8.1
Selenium-stabilized carbanions are available by a route that does not involve acid-catalyzed formation of selenoacetals. Aldehydes are converted first into α-hydroxystannanes and then into α-(phenylseleno)stannanes. Treatment with BuLi affords selenium-stabilized carbanions by preferential Sn/Li exchange.