作者:Nguyet Trang Thanh Chau、Thi Huu Nguyen、Anne-Sophie Castanet、Kim Phi Phung Nguyen、Jacques Mortier
DOI:10.1016/j.tet.2008.08.086
日期:2008.11
LTMP (5 equiv) metalates randomly veratric acid (1). Under external quench conditions, the thermodynamically more stable lithium 2-lithio-3,4-dimethoxybenzoate (2) reacts with a variety of electrophiles to give versatile building units that are not easily accessible by conventional means. Under in situ quench conditions (LTMP/TMSCl), a reversal of regioselectivity is observed and 6-trimethylsilyl-3
LTMP(5当量)将金属无定形金属(1)金属化。在外部淬火条件下,热力学上更稳定的2-lithio-3,4-dimethoxybenzoate锂(2)与各种亲电试剂反应生成通用的建筑单元,而这些单元是常规方法不易获得的。在原位淬灭条件(LTMP / TMSCl)下,观察到区域选择性的逆转并且主要形成6-三甲基甲硅烷基-3,4-二甲氧基苯甲酸(10)。