Novel and general cross-coupling reactions of alkynylzinc reagents and organotellurium compounds
作者:Miguel J. Dabdoub、Vânia B. Dabdoub、Joseph P. Marino
DOI:10.1016/s0040-4039(99)02088-2
日期:2000.1
The efficient cross-coupling reactions of different alkynyl organozinc reagents with unsaturated organotellurium species catalyzed by Pd(PPh3)4/CuI and using THF/DMF systems are described. These cross-coupling reactions are general and permit the formation of new sp–sp 2 carbon–carbon bonds. New reactions to reach the necessary alkynylzinc intermediates were also developed from terminal alkynes or
描述了不同的炔基有机锌试剂与Pd(PPh 3)4 / CuI并使用THF / DMF系统催化的不饱和有机碲物种的有效交叉偶联反应。这些交叉偶联反应很普遍,并允许形成新的sp–sp 2碳–碳键。还从末端炔烃或使用炔属碲化物作为起始原料开发了新的反应,以达到必要的炔基锌中间体。