Synthesis and Photochromic Properties of Cycloalkylidene Fulgides
作者:Teck-Peng Loh、Wei-Woon Wayne Lee、Leong-Ming Gan
DOI:10.1055/s-2005-917082
日期:——
A series of cycloalkylidene fulgides have been synthesized using β,γ-unsaturated diesters, instead of the usual α,β-unsaturated diesters. A study of their photochromic properties revealed that an increase in the cycloalkylidene ring size caused a subsequent decrease in the formation of the closed form from the open form.
The reaction of carbon monoxide with substituted 2-butyne-1,4-diols by pd(OAc)2/I2 catalyst gives derivatives of dimethylenesuccinic anhydride, “fulgides”, in high yields.