An efficient one-pot synthesis of 3,5-diaryl-4-bromopyrazoles by 1,3-dipolar cycloaddition of in situ generated diazo compounds and 1-bromoalk-1-ynes

Synthesis (Germany)

Volumn 45, Issue 3, 2013, Pages 413-420

  Sha, Qiang ^a   Wei, Yunyang ^a  

^a NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY   (China)

Author keywords

cycloaddition; diazo compounds; gem dibromoalkenes; hydrazones; pyrazoles

Indexed keywords

1 ,3-DIPOLARCYCLOADDITION; ALKYNYLS; AROMATIC RINGS; DIAZO COMPOUNDS; DIBROMOALKENES; ELECTRON-RICH; HYDRAZONES; ONE-POT SYNTHESIS; PYRAZOLES; REACTION SYSTEM;

ALDEHYDES; BROMINE COMPOUNDS; FUNCTIONAL GROUPS; KETONES;

CYCLOADDITION;

4 (4 BROMO 3 METHYL 5 PHENYL 3H PYRAZOL 3 YL)BENZONITRILE; 4 (4 BROMO 5 PHENYL 1H PYRAZOL 3YL) N,N DIMETHYLANILINE; 4 BROMO 3 (4 CHLOROPHENYL) 5 PHENYL 1H PYRAZOLE; 4 BROMO 3 (4 METHOXYPHENYL) 3 METHYL 5 PHENYL 3H PYRAZOLE; 4 BROMO 3 (4 METHOXYPHENYL) 5 PHENYL 1H PYRAZOLE; 4 BROMO 3 ETHYL 3,5 DIPHENYL 3H PYRAZOLE; 4 BROMO 3 METHYL 3 PHENYL 5 (2 PYRIDYL) 3H PYRAZOLE; 4 BROMO 3 METHYL 3 PHENYL 5 (2 THIENYL) 3H PYRAZOLE; 4 BROMO 3 METHYL 3,5 DIPHENYL 3H PYRAZOLE; 4 BROMO 3 METHYL 5 (2 NITROPHENYL) 3 PHENYL 3H PYRAZOLE; 4 BROMO 3 METHYL 5 (4 NITROPHENYL) 3 PHENYL 3H PYRAZOLE; 4 BROMO 3,5 DIPHENYL 1H PYRAZOLE; 4 BROMO 5 (2 FURYL) 3 METHYL 3 PHENYL 3H PYRAZOLE; 4 BROMO 5 (4 CHLOROPHENYL) 3 METHYL 3 PHENYL 3H PYRAZOLE; 4 BROMO 5 (4 CHLOROPHENYL) 3 PHENYL 1H PYRAZOLE; 4 BROMO 5 (4 METHOXYPHENYL) 3 METHYL 1H PYRAZOLE; 4 BROMO 5 (4 METHOXYPHENYL) 3 METHYL 3 PHENYL 3H PYRAZOLE; 4 BROMO 5 (4 NITROPHENYL) 3 PHENYL 1H PYRAZOLE; CHEMICAL COMPOUND; DIAZO COMPOUND; PYRAZOLE DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL ANALYSIS; CHEMICAL STRUCTURE; CYCLOADDITION; ONE POT SYNTHESIS; PROCESS DEVELOPMENT; PROCESS OPTIMIZATION; REACTION TIME; SUBSTITUTION REACTION; TEMPERATURE SENSITIVITY;

EID: 84872897015     PISSN: 00397881     EISSN: 1437210X     Source Type: Journal    
DOI: 10.1055/s-0032-1317992     Document Type: Article

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