摘要:
用1-甲基-2-苯基咪唑处理Pd(AcO)2,然后用氯化钠或溴化钠处理,得到相应的卤化物桥接的环金属化配合物[Pd o -C 6 H 4 C = NC(H)= C( H)NMe(μ- X)] 2(2,X = Cl;3,X = Br)。配合物2和3与叔二膦以1:1的摩尔比反应,得到具有双膦和卤素配体桥联的双核环金属化化合物[Pd o -C 6 H 4 C = NC(H)= C(H)NMe(μ- LL )(μ- X)] X(4–9)或仅带有桥接的二膦配体[Pd o -C 6 H 4 C = NC(H)= C(H)NMe(μ- LL)(X)2 ](10-17),[X = Cl,Br; LL = Ph 2 PCH 2 PPh 2(dppm),Ph 2 PC(= CH 2)PPh 2(vdpp),Ph 2 PCH(CH 3)PPh 2(1,1-dppe),反-Ph 2 P(CH = CH)PPh 2(反式-dppe),Ph