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Doklady Chemistry, Vol. 402, Part 1, 2005, pp. 72–74. Translated from Doklady Akademii Nauk, Vol. 402, No. 1, 2005, pp. 52–55. Original Russian Text Copyright © 2005 by Kondrashova, Shvekhgeimer. CHEMISTRY Synthesis of Derivatives of 5-(4-Hydroxycarbonylquinolyl-2)indole N. N. Kondrashova and M.-G. A. Shvekhgeimer Presented by Academician N.K. Kochetkov October 25, 2004 Received November 12, 2004 The Japp–Klingemann reaction is the reaction of takes place accompanied by the cleavage of one of the aryldiazonium salts with compounds containing an acti- activating groups with retention of both nitrogen atoms of the diazonium salt in the resulting com- vated methine group CHR , where X and Y are elec- pounds. In a general form, the Japp–Klingemann reaction tron-withdrawing groups. Thus, the coupling reaction can be represented as follows [1]: X H X N N Ar H O + ArN C Y(X)OH + X(Y)–C=N–NH–Ar Y R Y R If R = ëç or R = CH R' (R' = Alk, CH Ar, or salts 1 resulting from the diazotization of 6-R-2-(4- 3 2 2 aminophenyl)quinolyl-4-carboxylic acids [2, 3] CH Het) in the resulting compounds, these com- pounds can be used in Fisher’s method as convenient COOH building blocks for the synthesis of compounds
Doklady Chemistry – Springer Journals
Published: Jun 3, 2005
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