Reactions between β-Propiolactone and Dialkyl Dimethylphosphoramidite-Ambident Character of β-Propiolactone and of Dialkyl Dimethylphosphoramidite
作者:Jugo Koketsu、Seiji Kojima、Yoshio Ishii
DOI:10.1246/bcsj.43.3232
日期:1970.10
The reactions between dialkyl dimethylphosphoramidite, Me2NP(OR)2, and β-propiolactone were carried out in various solvents at 80°C. Two kinds of reaction products were separated on a silica gel by elution with benzene-ethanol (4:1 v/v). The first species eluted was N,N-dimethyl-O-alkyl 2-alkoxycarbonylethylphosphoramidate, (RO)P(O)(NMe2)CH2CH2CO2R. The fraction having lower Rf value contained dialkyl
Interaction of P(III) compounds with silyl halides
作者:Marek Cypryk、Julian Chojnowski、Jan Michalski
DOI:10.1016/s0040-4020(01)96642-6
日期:1985.1
The reaction of phosphorous hexamethyltriamide with trimethylsilyl iodide or bromide provides a convenient synthesis of the corresponding N,N,N',N'-tetramethylphosphorodiamidous halide. Low temperature 31P NMR studies gave evidence of the formation of a phosphonium salt-type complex with direct P-Si bonding in the first step of the reaction. Analogous phosphonium salt intermediates involving P-P bonds
六甲基三酰胺磷与三甲基甲硅烷基碘或溴的反应提供了相应的N,N,N',N'-四甲基磷二酰胺卤化物的便捷合成。低温31 P NMR研究提供了在反应的第一步中形成具有直接P-Si键的phospho盐型配合物的证据。发现涉及PP键的类似phospho盐中间体参与两个三配位磷物质之间的某些配体交换过程。
Ponomarchuk,M.P. et al., Journal of general chemistry of the USSR, 1978, vol. 48, p. 1379 - 1386
作者:Ponomarchuk,M.P. et al.
DOI:——
日期:——
Reactions of chloral with some organophosphorus compounds