论文部分内容阅读
Carbon dioxide(CO2) is an abundant and renewable C1 feedstock for the synthesis of a variety of valuable chemicals.Thus,the development of novel and efficient methodologies for the chemical fixation of CO2 has become one of the most important research topic for chemists.It is commonly proposed that the reaction between CO2 and propargylic alcohols catalyzed by transition metals proceeds through a vinyl metal species,and the subsequent protodemetallation will occur to yield the cyclic carbonate.Although the putative vinyl metal intermediate has never been isolated,it is reasonable to envisage that functionalized alkylidene cyclic carbonates could be obtained if the intermediate can be trapped with an electrophile E+.