Hydrogenolysis of 1??aminopyrazoles: Synthesis of primary and secondary alkylamines

G Adembri, A Camparini, F Ponticelli…

文献索引：Adembri, G.; Camparini, A.; Ponticelli, F.; Scotton, M. Journal of Heterocyclic Chemistry, 1992 , vol. 29, # 2 p. 321 - 326

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被引用次数: 7

摘要

Abstract The tautomerizable N-aminopyrazolone 9, the O-methyl 1 and N-methyl derivatives 4 were condensed with carbonyl compounds to give the alkenylaminopyrazoles 12, 2a-g and 5c, which, under mild conditions, were hydrogenated to the corresponding alkylamino derivatives. The subsequent hydrogenation of the latter ones gave different results according to the structure of the starting material. The 5-methoxy-1-alkylamino-pyrazoles ...