Room temperature electrocyclisation of the 1,2,4-triphosphole P3C2But2CH(SiMe3)2 affords the new 1,3,5-triphosphabicyclo[2.1.0]pent-2-ene which undergoes a very rapid [1,3]-phosphorus migration which can be stopped by coordination of [W(CO)5]; the two isomeric phosphorus compounds react differently with [PtCl2(PEt3)]2, the latter via an insertion of the metal into the P–P bond and a chlorine migration reaction to afford trans-[PtCl(PEt3)P2C2- But2PClCH(SiMe3)2], the molecular structure of which has been determined by a single crystal X-ray diffraction study.
1,2,4-三
磷孔 P3C2But2CH(SiMe3)2 的室温电环化产生了新的 1,3,5-三
磷双环[2.1.0]戊-2-烯。两种异构
磷化合物与 [PtCl2(PEt3)]2 的反应不同,后者通过
金属插入 P-P 键和
氯迁移反应生成反式-[PtCl(PEt3)P2C2- But2PClCH(SiMe3)2],其分子结构已通过单晶 X 射线衍射研究确定。