Reactions of dimethyl and di-tert-butyl 2-aryl-4-hydroxy-4-methyl-6-oxocyclohexane-1,3-dicarboxylates with difunctional nucleophiles |
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Authors: | V L Gein N V Gein K D Potemkin A P Kriven’ko |
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Institution: | (1) Perm State Pharmaceutical Academy, Perm, Russia;(2) Saratov State University, Saratov, Russia |
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Abstract: | The nature of the alkyl group in the ester moieties of dimethyl and di-tert-butyl 2-aryl-4-hydroxy-4-methyl-6-oxocyclohexane-1,3-dicarboxylates affects the direction of their reactions with difunctional nucleophiles. The dimethyl esters react with hydrazine hydrate to give the corresponding tetrahydroindazoles, while their tert-butyl analogs are converted under similar conditions into 6-hydrazones. Reactions of both dimethyl and di-tert-butyl 6-oxocyclohexane-1,3-dicarboxylates with hydroxylamine lead to formation of 6-hydroxyimino derivatives.Translated from Zhurnal Obshchei Khimii, Vol. 74, No. 10, 2004, pp. 1687–1691.Original Russian Text Copyright © 2004 by V. Gein, N. Gein, Potemkin, Kriven ko.This revised version was published online in April 2005 with a corrected cover date. |
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