One step synthesis of γ-alkylidenebutenolides from simple vinyl carboxylic acids and alkenes
作者:Chunbing Yu、Jian Zhang、Guofu Zhong
DOI:10.1039/c7cc04973k
日期:——
a straightforward and atom-economical protocol for the synthesis of a wide range of valuable γ-alkylidenebutenolides. This method is of particular interest because of employing widely available and low cost vinyl carboxylic acids and electron-deficient alkenes as building blocks. Moreover, the methodology can be applied to a gram scale synthesis with 1 mol% catalyst loading.
Synthesis of Functionalized α-Pyrone and Butenolide Derivatives by Rhodium-Catalyzed Oxidative Coupling of Substituted Acrylic Acids with Alkynes and Alkenes
The straightforward and efficient synthesis of α-pyrone and butenolide derivatives has been achieved by the rhodium-catalyzedoxidativecoupling reactions of substituted acrylic acids with alkynes and alkenes, respectively. Some α-pyrones obtained exhibit solid-state fluorescence.