Design, Syntheses and Biological Activity of Novel Herbicides Targeted ALS(Ⅲ)─Crystal and Molecular Structure of5,7-Dimethyl-N-(substitutedphenyl)-1, 2, 4-triazolo [1,5-a] pyrimidine-2-sulfonamide

Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (12): 1982.

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Design, Syntheses and Biological Activity of Novel Herbicides Targeted ALS(Ⅲ)─Crystal and Molecular Structure of₅,7-Dimethyl-N-(substitutedphenyl)-1, 2, 4-triazolo [1,5-a] pyrimidine-2-sulfonamide

YANG Guang-Fu¹, YANG Hua-Zheng¹, LU Rong-Jian¹, WANG Hong-Gen²

1. Institute of Elemento-organic Chemistry of Nankai University, National Key Laboratory of Elemento-organic Chemistry, Tianjin, 300071;
2. Central Laboratory of Nankai University

Received:1996-10-03 Online:1997-12-24 Published:1997-12-24

Abstract

Abstract: The title compound was syntheslzed and analysed by X-ray diffraction.The difference of ortho-substituents resulted in the great difference in conformation and their herbicidal activity.Compared with the crystal structures of herbicidal sulfonurea, the same structure-activity relationship as that of sulfonurea can be found in sulfonamides, which indicatedthat this two kinds of herbicides might have the same binding site on ALS.

Key words: Sulfonylamide, X-ray diffraction, Crystal structure, Structure-activity relationship

CLC Number:

O615.20

TrendMD:

YANG Guang-Fu, YANG Hua-Zheng, LU Rong-Jian, WANG Hong-Gen. Design, Syntheses and Biological Activity of Novel Herbicides Targeted ALS(Ⅲ)─Crystal and Molecular Structure of₅,7-Dimethyl-N-(substitutedphenyl)-1, 2, 4-triazolo [1,5-a] pyrimidine-2-sulfonamide[J]. Chem. J. Chinese Universities, 1997, 18(12): 1982.

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Design, Syntheses and Biological Activity of Novel Herbicides Targeted ALS(Ⅲ)─Crystal and Molecular Structure of₅,7-Dimethyl-N-(substitutedphenyl)-1, 2, 4-triazolo [1,5-a] pyrimidine-2-sulfonamide

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