Catalytic Carboxylationusing Carbon Dioxide

甲硅烷基铜物质与炔的合成加成提供甲硅烷基烯基铜中间体。然后，插入二氧化碳提供相应的羧酸铜物质。因此，通过利用甲硅烷基硼烷作为硅源在二氧化碳的大气压下实现了炔的第一催化硅杂羧化，以高产率选择性地提供硅内酯。

Syn addition of silyl copper species to an alkyne affords a silyl alkenyl copper intermediate. Then, insertion of carbon dioxide provides the corresponding copper carboxylate species. Thus, the first catalytic silacarboxylation of an alkyne has been achieved by utilizing silylborane as the silicon source under atmospheric pressure of carbon dioxide to afford the silalactone selectively in high yield.