The chemistry of phthalide-3-carboxylic acid - I decarboxylation in the presence of aldehydes
作者:Rolf H. Prager、Carl H. Schiesser
DOI:10.1016/s0040-4020(01)91799-5
日期:1984.1
The decarboxylation of phthalide-3-carboxylic acid (3-oxo-l,3-dihydroisobenzofuran-1-carboxylic acid) has been studied in the melt, in dimethylsulfoxide, and in the presence of aromatic aldehydes. The latter are efficiently trapped to produce mixtures of 3-arylidene-phthalides and 3-(arylhydroxymethyl)phthalides. Kinetic and other evidence supports the proposal that this reaction occurs in a tight
已经在熔体中,在二甲基亚砜中和在芳族醛存在下研究了邻苯二甲酸酯-3-羧酸(3-氧代-1,3-二氢异苯并呋喃-1-羧酸)的脱羧。后者被有效地捕集以产生3-亚芳基-邻苯二甲酸酯和3-(芳基羟甲基)邻苯二甲酸酯的混合物。动力学和其他证据支持这一反应以紧密的循环过渡态发生的提议。