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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.
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) substituted phenylsulfonamides. 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 groups giving the corresponding derivatives. discussed. Some of compounds (Ⅱ) have herbicidal activities.