摘要:
Schiff碱4-MeC 6 H 4 C(H)NCy(a),3-Me-4-MeOC 6 H3C(H)N-2',4'-6'-Me的抽象处理3 C 6 H 2(b)或2,4-Me 2 C 6 H 3 C(H)N-2',4',6'-Me 3 C 6 H 2(c)与乙酸钯(II)得到环金属化的配合物1a,1b和1c。它们与NaX反应,得到卤化物桥联的络合物2a,2b和2c(X = Cl),3a,3b和3c(X = Br)和4c(X = I)。卤代桥二聚体与Ph 2 PCH 2 PPh 2(dppm),反式-Ph 2PCHCHPPh2(反式-dppe),顺式-Ph 2PCHCHPPh2(顺式-dppe)或Ph 2 P( CH 2)4 PPh 2(dppb),视二聚物/二膦的摩尔比为1:1或1:2为宜,得到双核膦桥联4a,5a,4b,5b,5c – 7c和8c – 10c以及单核6a ,6