Tetrahedron Letters

Methylation of 4-nitro-3 (5)-pyrazolecarboxylic acid

A Regiec, H Mastalarz, A Mastalarz, A Kochel

Index: Regiec, Andrzej; Mastalarz, Henryk; Mastalarz, Agnieszka; Kochel, Andrzej Tetrahedron Letters, 2009 , vol. 50, # 22 p. 2624 - 2627

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Citation Number: 5

Abstract

Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Reactions of 4-nitro-3(5)-pyrazolecarboxylic acid dipotassium salt with different methylating agents in various solvents have been investigated to improve the synthesis of isomeric 1-methyl-4-nitro-3- and -5-pyrazolecarboxylic acids. ... Methylation of 4-nitro-3(5)-pyrazolecarboxylic acid ...