Journal
CHEMICAL COMMUNICATIONS
Volume 58, Issue 52, Pages 7297-7300Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc01793h
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- CSIR, New Delhi
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A silver-catalyzed decarboxylative cyclization process has been developed to synthesize substituted pyrazoles from readily available 1,2-diaza-1,3-dienes and alpha-keto acids. Under optimized conditions, a series of multisubstituted pyrazoles were synthesized in moderate to good yields. Furthermore, the synthetic utility of this method has been demonstrated by synthesizing analogs of FDA approved drugs such as anti-inflammatory drug, lonazolac and antiobesity drug, rimonabant.
A silver-catalyzed decarboxylative cyclization process has been developed for the synthesis of substituted pyrazoles from the readily available 1,2-diaza-1,3-dienes and alpha-keto acids. Under the optimized conditions, a series of multisubstituted pyrazoles were well prepared in moderate to good yields. In addition, the synthetic utility of this protocol has been demonstrated by synthesizing analogs of FDA approved drugs such as anti-inflammatory drug, lonazolac and antiobesity drug, rimonabant.
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