期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 80, 期 9, 页码 4325-4335出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo502946g
关键词
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资金
- Department of Science & Technology India [GAP 0378, GAP 0470]
- 12th Five Year Plan Project [ACT-CSC-0301]
- NIPER India
- CSIR-New Delhi
An operationally simple and high yielding protocol for the synthesis of polyfunctional pyrazoles has been developed through one-pot, three-component coupling of aldehydes, 1,3-dicarbonyls, and diazo compounds as well as tosyl hydrazones. The reaction proceeds through a tandem Knoevenagel condensation, 1,3-dipolar cycloaddition, and transition metal-free oxidative aromatization reaction sequence utilizing molecular oxygen as a green oxidant. The scope of the reaction was studied by varying the aldehyde, 1,3-dicarbonyl, and diazo component individually.
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