A method for the regioselective synthesis of 1-alkyl-1H-indazoles
HJ Liu, SF Hung, CL Chen, MH Lin
Index: Liu, Han-Jun; Hung, Shiang-Fu; Chen, Chuan-Lin; Lin, Mei-Huey Tetrahedron, 2013 , vol. 69, # 19 p. 3907 - 3912
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Citation Number: 7
Abstract
A method for the regioselective synthesis of 3-unsubstituted 1-alkyl-1H-indazoles, starting with 2-halobenzonitriles and N-alkylhydrazines, is described. The two-step reaction pathway proceeds through the intermediacy of 1-alkyl-3-amino-1H-indazoles followed by reductive deamination.
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