L'Obtention d'un haut degre d'induction asymetrique necessite la chelation du carbonyle et de l'oxygene de l'ether de l'oxathianne par un reactif Organic metallique
Prevention of chelation by an oxygen function through protection with a triisopropyl silyl group
作者:Stephen V. Frye、Ernest L. Eliel
DOI:10.1016/s0040-4039(00)84759-0
日期:1986.1
In contrast to other α- and β-alkoxy substituents the triisopropylsilyloxy group does not depress the high diastereomer excess normally realized in nucleophilicaddition to 2-acyl-1,3-oxathianes.