CAS No.83121-15-7,Benzenamine,3,5-dichloro-2,4-difluoro- Suppliers

Detail of "83121-15-7"

CAS Number:

83121-15-7

Name:

Benzenamine,3,5-dichloro-2,4-difluoro-

Superlist Name:

2,4-Difluoro-3,5-dichloroaniline

Molecular Structure:

Formula:

C₆H₃Cl₂F₂N

Molecular Weight:

198.00

Synonyms:

3,5-Dichloro-2,4-difluoroaniline;

Density:

1.596 g/cm³

Melting Point:

75 °C

Boiling Point:

268.1 °C at 760 mmHg

Flash Point:

116 °C

Hazard Symbols:

Risk Codes:

36/37/38

Safety:

26-36/37/39 Details

Reference

Synthesis of the benzoylurea insecticide teflubenzuron: All Rights Reserved. Synthesis of the benzoylurea insecticide teflubenzuron. Jia, Jianhong; Sheng, Weijian; Gao, Jianrong (College of Chemical Engineering and Materials, Zhejiang University of Technology, Hangzhou 310032, Peop. Rep. China). 18063-03-1 and 83121-15-7 are cas registry numbers. These chemicals are also mentioned in this article. Nongyao, 44(6), 263-264, 268 (Chinese) 2005 Nongyao Bianjibu. CODEN: NONGFP. ISSN: 1006-0413. DOCUMENT TYPE: Journal CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Section cross-reference(s): 48 Teflubenzuron [i.e., N-[[(3,5-dichloro-2,4-difluorophenyl)amino]carbonyl]-2,6-difluorobenza mide] is a new benzoylurea insecticide with esp. good efficacy in controlling insect pests resistant to organophosphate, synthetic pyrethroid, and carbamate insecticides. The intermediate 3,5-dichloro-2,4-difluoroaniline was synthesized by chlorination and redn. of 2,4-difluoronitrobenzene. An acylation reaction of 2,6-difluorobenzamide and bis(trichloromethyl) carbonate produced a second intermediate, 2,6-difluorobenzoyl isocyanate. By treating 3,5-dichloro-2,4-difluoroaniline with 2,6-difluorobenzoyl isocyanate, teflubenzuron was synthesized with a total yield of 79.3%. This process offers the advantages of ready availability of reactants, low isomer prodn., and few reaction steps. .

New technique for synthesis of insecticide teflubenzuron, one kind of benzoylureas: All Rights Reserved. Several substances are used for example 83121-15-7 and 446-35-5 which are their cas registry numbers. New technique for synthesis of insecticide teflubenzuron, one kind of benzoylureas. Lu, Yang; Tao, Jing-Chao; Dong, Chao-yu; Zhang, Zhi-rong; Xu, Gu-hua; Feng, Shi-long (Chemistry Department, Zhengzhou University, Zhengzhou 450001, Peop. Rep. China). Jingxi Yu Zhuanyong Huaxuepin, 14(6), 18-19, 22 (Chinese) 2006 Jingxi Yu Zhuanyong Huaxuepin Bianjibu. CODEN: JYZHA7. ISSN: 1008-1100. DOCUMENT TYPE: Journal CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) Section cross-reference(s): 5 3,5-Dichloro-2,4-difluoroaniline was synthesized from 2,4-difluoronitrobenzene by chlorination and redn. reaction. The 2,6-difluorobenzamide was synthesized from 2,6-dichlorobenzonitrile via fluorination and hydrolysis. An acylation reaction based on 2,6-difluorobenzamide and bis(trichloro-methyl) carbonate was carried out to produce 2,6-difluorobenzoyl isocyanate, afterwards the addn. reaction with 3,5-dichloro-2,4-difluoroaniline was conducted to synthesize insecticide Teflubenzuron. The overall yield was 75.3%. .

Detail of "83121-15-7"

Benzenamine,3,5-dichloro-2,4-difluoro-

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CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

CAS No.83121-15-7 2,4-Difluoro-3,5-dichloroaniline

Reference