New Aspects of the Chemistry of 2,4.6-tris(trifluoromethyl) benzoic acid and related compounds
作者:Robert Filler、William K. Gnandt、Wei Chen、Shan Lin
DOI:10.1016/s0022-1139(00)80325-5
日期:1991.4
6-tris(trifluoromethyl)benzoic acid. The acid has been well characterized by spectral and pKa data. The acid chloride is formed only slowly under stringent conditions. The acid fails to undergo normal esterification with ethanol because of steric hindrance to the required tetrahedral intermediate. The ester does form via the linear acylium ion. A highly substituted phenolic ester of the acid has been obtained via