Pd-catalyzed Negishi coupling of pyrazole triflates with alkyl zinc halides |
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Authors: | Ting Zhang Xiaodi GaoHarold B Wood |
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Institution: | a Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA b Merck Summer Research Intern, University of Michigan, Ann Arbor, MI, USA |
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Abstract: | A mild, functional group tolerant palladium-catalyzed Negishi coupling of pyrazole triflates and nonaflates with alkyl, benzyl, and aryl zinc halides has been developed. It allows quick access to 3-substituted pyrazole analogs at late stage via common synthetic intermediates. |
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Keywords: | Negishi coupling Cross-coupling Palladium catalysis Pyrazole triflates Organozinc reagents Analog synthesis |
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