Acid??catalyzed reactions of 3??(α??hydroxybenzyl) pyrazolo [1, 5??a] pyridines

…, H Hachiken, S Takemura, M Ikeda

Index: Hachiken, Hiroko; Takemura, Shoji; Ikeda, Masazumi Journal of Heterocyclic Chemistry, 1988 , vol. 25, p. 327 - 331

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Citation Number: 5

Abstract

Abstract Treatment of 3-(or-hydroxybenzyl) pyrazolo [1, 5-a] pyridines with trifluoroacetic acid in dichloromethane resulted in the formation of pyrazolo [1, 5-a] pyridines, bis [α- (pyrazolo [1, 5-a] pyrid-3-yl) benzyl] ethers, and phenylbis (pyrazolo [1, 5-a] pyrid-3-yl) methanes, depending upon the presence or absence of the substituents at the 2-and/or 4- positions and the reaction conditions employed.