Modular Synthesis of Axially Chiral 3,3′-Disilyl Dicarboxylic Acids by Silalactones
作者:Takuya Hashimoto、Toshiki Takagaki、Hidenori Kimura、Keiji Maruoka
DOI:10.1002/asia.201100172
日期:2011.8.1
A modular strategy for the synthesis of a variety of axially chiral dicarboxylic acids bearing 3,3′‐disilyl groups has been developed. Dehydrogenative silalactonization and subsequent Grignard addition offered a straightforward way towards axially chiral 3,3′‐disilyl dicarboxylic acids in good yields (see scheme; LiTMP=lithium 2,2,6,6‐tetramethylpiperidide).
已开发出一种模块化策略,用于合成多种带有3,3'-二甲硅烷基的轴向手性二羧酸。脱氢硅烷化和随后的格利雅(Grignard)添加为轴向手性3,3'-二甲硅烷基二羧酸的高产率提供了直接方法(参见方案; LiTMP = 2,2,6,6-四甲基锂锂)。