Tris(benzotriazol-1-yl)methane: A<sup>-</sup>CO<sub>2</sub>H Synthon for the Preparation of Carboxylic Acids
作者:Alan R. Katritzky、Zhijun Yang、Jamshed N. Lam
DOI:10.1055/s-1990-26975
日期:——
Lithiation of tris(benzotriazol-1-yl)methane 16 gives the tris(benzotriazolyl)methyl carbanion 17 which affords substitution products 18 with many electrophiles. Acidic hydrolysis of 18 affords the corresponding carboxylic acids 19 in good yield. The syntheses of several α-functionalized carboxylic acids are described.
三(苯并三氮唑-1-基)甲烷16的锂化反应生成了三(苯并三氮唑基)甲基负碳离子17,后者与多种亲电试剂反应生成取代产物18。18的酸性水解反应高效地生成了相应的羧酸19。本文描述了几种α-官能化羧酸的合成方法。