Zheng Jian-hong
2012
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0
Influential Citations
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Citations
Journal
Chemistry World
Abstract
2-Amino-3-methylbenzoic acid was synthesized by hydrogenation of 3-methyl-2-nitrobenzoic acid using RaneyNi as catalyst.2-Amino-5-chloro-3-methylbenzoic acid was prepared from 2-amino-3-methylbenzoic acid and N-chlorosuccinimid(NCS).2-Amino-5-chloro-N,3-dimethylbenzamide was prepared from aqueous methylamine solution and the intermediate which was synthesized by the reaction of 2-amino-5-chloro-3-methylbenzoic acid and thionyl chloride at 75~80℃ for 3 h.Chloranthraniliprole was prepared from 2-amino-5-chloro-N,3-dimethylbenzamide and 3-bromo-1-(3-chloro-2-pyridinyl)-1H-pyrazole-5-carboxylic acid by dropping methanesulfonyl chloride at-5~0℃.The total yield was 37.0% and the purity of the product was 96.05%.