1 ,3 ,2-Oxazaphospholidine Derivatives(I)——The Synthessa of 2 - Diethylamino- 3-arylsulfonyl- 1,3,2-Oxazaphospholidine and Its 2-thiono Deiativea and Their Properties

A series of new 2-diethylamino-3-substituted phenylsulfonyl-1,3,2-oxazaphospholidine derivatives (Ⅰ) has been synthesized by the reaction of tris(diethylamino) phosphine with N-(β-hydroxyethyl) substitutedphenylsulfonamides. When was refluxed with sulfur in benzene, the 2-thiono derivatives (Ⅱ) was obtained conveniently.(Ⅰ) was easily oxidized in air and the diethylamino group could be substituted by phenoxy or other amino group giving the corresponding derivatives. Their H NMR and MS spectra have been discussed. Some of compounds (Ⅱ) have herbicidal activities.