作者:Vasilii Petrovich Morgalyuk、Tat’yana Vladimirovna Strelkova、Eduard Eugenievich Nifant’ev
DOI:10.1246/bcsj.20110157
日期:2012.1.15
The chemical properties of chloro(dialkylamino)(diphenylphosphinoyl)methanes have been studied using the simplest compound of this series, chloro(dimethylamino)(diphenylphosphinoyl)methane, as an example. Chloro(dimethylamino)(diphenylphosphinoyl)methane shows ambident reactivity when reacting with electrophiles and nucleophiles depending on coreactant nature, it behaves as either electrophilic substrate or phosphorus nucleophile. This fact can be explained by its dissociation in solutions with both C–Cl bond cleavage to give (dimethylamino)(diphenylphosphinoyl)methyl cation and Cl− anion and C–P bond cleavage to form chloro(dimethylamino)methyl cation and diphenylphosphinite anion. The capability of chloro(dimethylamino)(diphenylphosphinoyl)methane to produce spontaneously Ph2PO–anion allows us to recommend application in organic and organophosphorus synthesis as a synthetic equivalent (synthon) of diphenylphosphinite anion.
氯(二烷基氨基)(二苯膦酰基)甲烷的化学性质已通过该系列的最简单化合物氯(二甲基氨基)(二苯膦酰基)甲烷进行研究。氯(二甲基氨基)(二苯膦酰基)甲烷在与亲电试剂和亲核试剂反应时显示出双重反应性,这取决于共反应物的性质,它既可以作为亲电底物,也可以作为磷亲核试剂。这一事实可以通过其在溶液中的解离来解释,解离过程中C–Cl键断裂生成(二甲基氨基)(二苯膦酰基)甲基阳离子和Cl−阴离子,而C–P键断裂则形成氯(二甲基氨基)甲基阳离子和二苯膦酸盐阴离子。氯(二甲基氨基)(二苯膦酰基)甲烷自发生成Ph2PO–阴离子的能力使我们建议在有机和有机磷合成中应用其作为二苯膦酸盐阴离子的合成等效物(合成体)。