East China University of Science and Technology

Shanghai Shengnong Pesticide Co., Ltd.

Xiaoyong Xu

Zhong Xian Li

Xuhong Qian

Gonghua Song

Xusheng Shao

Liming Tao

Jian Hu

Guobin Ren

Minghui Qi

Qingchun Huang

Zhiping Xu

Chengyu Gong

Zhong Li

A tebuconazole polymorph and a preparation method therefor are described. In particular, a polymorph of (RS)-1-(4-chloropheny)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl) pentan-3-ol, a preparation method therefor and use thereof are provided. The tebuconazole polymorph has a high purity and excellent crystallization properties, is stable under high humidity, high temperature and light conditions, has excellent solubility, and has high processing properties for formulations, high biological activities and good sterilization effects. The preparation method is simple, has stable processes, and can be implemented on a large scale. The polymorph can greatly improve the quality control and industrial application of tebuconazole-containing pesticides.

Tebuconazole polymorph and preparation method therefor

Nitromethylene analogues of imidacloprid and divalent and oxabridged heterocyclic neonicotinoid compounds constructed by dialdehydes, preparation methods and uses thereof are disclosed. Compounds represented by formula (A) or (B), their optical isomers or agrochemically acceptable salts are provided. Agrochemical compositions comprising the said compounds, their optical isomers or agrochemically acceptable salts, the uses of the said agrochemical compositions and the preparation methods of the said compounds, their optical isomers or agrochemically acceptable salts are also disclosed. The compounds and their derivatives have high insecticidal activities to several farming and forestry pests including homoptera and lepidoptera pests, such as aphis, fulgorid, whitefly, leafhopper, common thrips, cotton bollworm, cabbage caterpillar, cabbage moth, cotton leafworm and armyworm. 

Substituted 8-oxa-10,11-dihydroimidazo[2,3-a]bicyclo[3.2.1]oct-3-enes and use thereof as an insecticide

The heterocyclic nitrogenous or oxygenous compounds of formula (A), (B), (C) or (D) formed from dialdehydes, their optical isomers, cis- and trans-isomers, or agrochemically acceptable salts, their preparation methods, agrochemical compositions comprising the compounds and the uses thereof are provided. The compounds and their derivatives have high insecticidal activities to several farming and forestry pests including homoptera and lepidoptera pests, such as aphis, fulgorid, whitefly, leafhopper, common thrips, cotton bollworm, cabbage caterpillar, cabbage moth, cotton leafworm, armyworm and so on.

Heterocyclic nitrogenous or oxygenous compounds with insecticidal activity formed from dialdehydes and their preparation and uses thereof

The present invention relates to nitro-containing heterocyclic or ring-opening nitrogenous compounds of formula (A), wherein R, R, R, R, R, Y, Z, and W are as defined in the specification. The present invention discloses the preparation and the uses of a novel insecticide. Said compound and the derivatives thereof have high insecticidal activity to farm insects including homoptera and lepidoptera pests, such as aphis, fulgorides, aleyrodids, leafhopper, commom thrips, cotton bollworm, cabbage caterpillar, cabbage moth, cotton leafworm, armyworn and so on. 

Nitrogenous heterocyclic compounds with insecticidal activity, and the preparation and use thereof

Growing community of inventors

Shanghai, China

Xiaoyong Xu