Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (10): 1387.

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Study on the Synthesis and Herbicidal Activity of 3-Phenyl-4-chIoro-l,3?-diazaphospholidin-2-thione

FENG Ke-Sheng, CHEN Ru-Yu, CHENG Mu-Ru, XIAO Hong-Bo, LI Dong-Bo   

  1. Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071
  • Received:1992-12-19 Revised:1993-05-17 Online:1993-10-24 Published:1993-10-24

Abstract: Phenylthiourea was reacted with trichlorophosphine and aldehydes (ketones) to produce 3-phenyl-4-chloro-1, 3, 4-diazaphospholidin-2-thione-4-oxides (Ⅰ) a.s well as the corresponding 4-sulfides(Ⅱ) in anhydrous benzene.Compounds Ⅰ were easily transformed into compounds Ⅱ.by Lawesson reagent.Compounds Ⅰ were distinguished from compounds Ivery clearly by 31P NMR, MSand IRspectra.The X-ray analysis of compound Ⅱc indicated that the five-membered heterocycle had coplanar structure.The biological tests found that compounds Ⅱ have good selective herbicidal activities.

Key words: 1,3,4-Diazaphospholidin-2-thione, Synthesis, Herbicidal activity

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