Preparation of Polyfunctionalized 2,6-Dimethoxypyrimidine Derivatives via Chemo- and Regioselective Direct Zinc Insertion
作者:Paul Knochel、Darunee Soorukram、Nadège Boudet、Vladimir Malakhov
DOI:10.1055/s-2007-983885
日期:2007.12
direct chemo- and regioselective zinc insertions is described. The insertion of commercially available zinc dust into C-I and C-Br bonds, in the presence of LiCl, proceeded under mild reaction conditions. The reactions of the resulting organozinc reagents with electrophiles gave the expected products in good yields. This procedure represents a new method for the polyfunctionalization of uracil derivatives
描述了通过直接化学选择性和区域选择性锌插入在 2,6-二甲氧基嘧啶衍生物的 C4 和/或 C5 位置进行的功能化。在 LiCl 存在下,将市售的锌粉插入 CI 和 C-Br 键中,是在温和的反应条件下进行的。所得有机锌试剂与亲电试剂的反应以良好的产率产生预期的产物。该程序代表了尿嘧啶衍生物多官能化的新方法。