摘要:
钇卡宾配合物[Y(BIPM)(I)(THF)2 ](1; BIPM = C(PPh 2 NSiMe 3)2)与一系列不饱和底物反应。的反应1与phosphaalkyne PCBu吨,得到[2 + 2]环加成产物[Y {C(PPH 2 NSiMe 3)2(PCBu吨)-κ 4 Ç,Ç ',Ñ,Ñ '}(I)] (2)。类似地,1与杂烯基N,N的反应'-dicyclohexylcarbodiimide和叔-丁基异氰酸酯,得到[2 + 2]环加成产物[Y {C(PPH 2 NSiMe 3)2 [C(NCY)2 ]-κ 4 Ç,Ñ,Ñ ',Ñ “}(I )(THF)](3)和[Y {C(PPH 2 NSiMe 3)2 [C(O)(NBU吨)] - κ 4 ç,ñ,ñ ',ö }(I)(THF)2 ] (4)。相反,1与叔胺的反应丁基异硫氰酸酯,得到烯酮亚胺卜吨N═C═C(PPH 2 NSiMe 3