Ambidentate nucleophiles. Part 3. Reactions of phosphoroselenoates with molecular halides: the use of 1 J(PSe) as a structural diagnostic
作者:Christopher Glidewell、Elaine J. Leslie
DOI:10.1039/dt9770000527
日期:——
Sodium OO′-di-isopropyl phosphoroselenoate, Na[SeOP(OPri)2](Na[L]), reacts with molecular halides of carbon, silicon, germanium, tin, phosphorus, arsenic, and sulphur to give derivatives MLn. Comparison of the values of 1J(PSe) in the products with those in a number ofmodel compounds indicates that O-bonded isomers M[OP(OPri)2Se] are formed in LCOPh and PL3, that Se-bonded isomers M[SePO(OPri)2] are
钠OO ' -二异丙基甲基膦酸酯,钠[燮(OPR我)2 ](钠[L]),用碳,硅,锗,锡,磷,砷和硫的分子卤化物反应得到衍生物ML Ñ。将产物中的1 J(PSe)值与多种模型化合物中的1 J(PSe)值进行比较,表明在LCOPh和PL 3中形成了O键合异构体M [OP(OPr i)2 Se] ,即Se键合异构体M在LC 2 H 5,SiMe 3 L,GePh 3 L,SnPh中形成[SePO(OPr i)2 ]3 L,AsL 3,LSO 2 Ph和L 2,而SnMe 3 L,SnPh 2 L 2和SnPhL 3可能含有双齿L。酯P(OR) 3 Se(RMe或Et)对与之反应呈惰性分子卤化物。化合物P(OEt) 3 Se比PPh 3 Se弱得多,而PPh 3 Se本身比PPh 3 O弱。