Copper-catalyzed 1,4-protosilylation and 1,4-protoborylation of enynic orthoesters for synthesis of functionalized 2,3-allenoates
作者:Qi Li、Zi-Lu Wang、Yun-He Xu
DOI:10.1016/j.cclet.2023.108150
日期:2023.1
Herein, copper-catalyzed 1,4-protosilylation and 1,4-protoborylation of enynic orthoesters have been developed. The enynic orthoesters as precursors of unstable enynic esters were applied to produce the functionalized 2,3-allenoate products. Meanwhile, the asymmetric 1,4-protosilylation of enynic orthoesters with PhMe2Si-Bpin was also studied. The chiral monopyridine imidazoline ligand was efficient
在此,开发了铜催化的烯炔原酸酯的 1,4-原甲硅烷基化和 1,4-原硼基化。烯炔原酸酯作为不稳定烯炔酯的前体,被用来生产功能化的2,3-联烯酸酯产品。同时,还研究了烯炔原酸酯与PhMe 2 Si-Bpin的不对称1,4-原甲硅烷基化反应。手性单吡啶咪唑啉配体可有效提供具有高对映选择性的不对称1,4-原甲硅烷基化产物。