Intramolecular catalysis of aminolysis of phosphorus heterocycles incorporating an α-aminoamide moiety. III. Synthesis of 2-oxo or 2-thioxo 1,3-disulfonyl-1,3,2-diazaphospholidines and reactions with amines and alcohols
作者:Frédéric J. M. Dujols、Michel E. Mulliez
DOI:10.1002/jhet.5570380227
日期:2001.3
series of 2-oxo or 2-thioxo1,3-disulfonyl-1,3,2-diazaphospholidines 4was prepared by condensation of phosphonyl dichlorides 2 with bis-N,N'-sulfonylethylenediamines 1 in pyridine. Complete aminolysis or alcoholysis of heterocycles 4 took place with regeneration of sulfonyldiamines 1. These reactions are very sensitive to steric hindrance, and hydrolysis is generally favoured over aminolysis. The results
作者:M. A. Pudovik、L. K. Kibardina、T. A. Zyablikova、A. N. Pudovik
DOI:10.1023/a:1012340630796
日期:——
N,N'-Dimethyl-N,N'-bis(trimethylsilyl)methylphosphonic diamide reacts with chloral to form 1,2,3-trimethyl-4,4-dichloro-5-trimethylsitoxy-1,3,2-diazaphospholidine 2-oxide and with chloromethyldimethylchlorosilane to form 1,2,3,4,4-pentamethyl-1,3-diaza-2-phospha-4-silacyclopentane 2-oxide.