中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
苯基次甲基三苯基膦烷 | triphenyl(phenylmethylene)phosphorane | 16721-45-2 | C25H21P | 352.415 |
Triphenylphosphonium 1-trimethylsilylbenzylides 1 react with the bis(dichlorophosphino)- substituted ylide 2 both at their 1- and ortho-position to yield 1,3-diphosphatetraline derivatives 4 containing two ylide and PCI units each as alternating ring members. The two PCI groups differ decisively in their spontaneous dissociation in a polar medium, as well as in their oxidation by elemental sulfur. With gallium trichloride dicationic 1,3-diphosphanaphthalenes (1,3-benzodiphosphinines) are formed, in which both phosphorus ring members achieve twocoordination and which represent a novel π10 system
三苯基膦基-1-三甲基硅基苄基化合物1与二氯代膦取代的双膦亚胺2在它们的1位和邻位反应,生成含有两个膦亚胺和PCI单元的1,3-二膦四环衍生物4,作为交替环成员。这两个PCI基团在极性介质中自发解离的能力以及它们被元素硫氧化的能力有明显的差异。使用三氯化镓二阳离子的情况下,形成1,3-二膦萘(1,3-苯并二膦)化合物,其中两个磷环成员均达到二配位,代表了一种新颖的π10体系。