Selective mixed coupling of carboxylic acids via unsymmetrical diacyl peroxides by electrolysis, thermolysis and photolysis
作者:Michael Feldhues、Hans J. Schäfer
DOI:10.1016/0040-4039(81)80118-9
日期:1981.1
Unsymmetrical diacyl peroxides are prepared in 85–92 % yields. Their square pulse electrolysis affords unsymmetrical dimers in poor yield and selectivity. Whilst thermolysis or photolysis in solution produces high portions of disproportionation products, the photolysis of the neat peroxides at −78° C yields selectively 50–75 % of the mixed dimers.
不对称二酰基过氧化物的制备产率为85-92%。他们的方脉冲电解提供了不良的收率和选择性不对称的二聚体。溶液中的热解或光解会产生大量歧化产物,而纯过氧化物在-78°C下的光解选择性地产生了50-75%的混合二聚体。