Citation: Guo Feng ZHAO, Hua Zheng YANG. The Synthesis and Biological Activity of N-Arylamino Carbonyl Methylene 1,2-Benzothiazine 1,1-Dioxides[J]. Chinese Chemical Letters, ;1996, 7(12): 1087-1088.
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In this paper four new 1,2-benzothiazine 1,1-dioxide derivatives 4 were synthesized by the reaction of 4-ethylenedioxy-2H-1,2-benzothiazine 1,1-dioxide 2 with 2-chloroacetamides 3 under the action of base.The biological tests indicated that these four compounds have good herbicidal activity.
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