Regioselective Hydrostannation of Terminal Acetylenes under Transition Metal Catalysis
作者:Kiyoshi Kikukawa、Hideto Umekawa、Fumio Wada、Tsutomu Matsuda
DOI:10.1246/cl.1988.881
日期:1988.5.5
Rhodium complexes (RhClL3, RhCl(CO)L2, [RhCl(COD)]2; L=PPh3) catalyze hydrostannation of terminal acetylenes (RC≡CH; R=Ph, Me3Si, R1OC(R2)(R3), and R1OCH2CH2; R1=THP, OAc; R1, R2=H, Me) with Bu3SnH to produce R(Bu3Sn)C=CH2 selectively. Other transition metal complexes [MCl2L2(M=Ni, Pd, Pt, Co)] are also active for the hydrostannation, but with less selectivity.
铑配合物(RhClL3、RhCl(CO)L2、[RhCl(COD)]2;L=PPh3)催化末端乙炔(RC≡CH;R=Ph、Me3Si、R1OC(R2)(R3)和R1OCH2CH2; R1=THP, OAc; R1, R2=H, Me) 与 Bu3SnH 选择性地产生 R(Bu3Sn)C=CH2。其他过渡金属配合物 [MCl2L2(M=Ni, Pd, Pt, Co)] 也有利于氢化锡化,但选择性较低。