Perfect Switching of Photoreactivity by Acid: Photochemical Decarboxylation versus Transesterification of Mesityl Cyclohexanecarboxylate
作者:Tadashi Mori、Takehiko Wada、Yoshihisa Inoue
DOI:10.1021/ol0065266
日期:2000.10.1
cyclohexanecarboxylate has been photodecarboxylated upon excitation at 254 nm to form cyclohexylmesitylene in good yield in neutral acetonitrile solutions. In the presence of a catalytic amount of the acid and ethanol as a nucleophile, however, the same compound undergoes facile transesterification upon irradiation, affording its ethyl ester in almost quantitative yield.