Synlett 2014; 25(1): 155-156
DOI: 10.1055/s-0033-1340156
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© Georg Thieme Verlag Stuttgart · New York

5-Alkyl and 5,5-Dialkyl Meldrum’s Acids

Inese Mierina
Riga Technical University, Faculty of Material Science and Applied Chemistry, Azenes Str. 14/24, 1048 Riga, Latvia   Email: inesem@ktf.rtu.lv
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Publication History

Publication Date:
21 November 2013 (online)

Introduction

5-Alkyl and 5,5-dialkyl Meldrum’s acids (1 and 2, respectively) are used in total synthesis.[1] Monoalkylated derivatives 1 are synthesized from Meldrum’s acid 3 by condensation with aldehyde[2] (or by acylation[3]) followed by hydrogenation.

5,5-Dialkyl Meldrum’s acids 2 can be obtained by alkylation of Meldrum’s acid 3 or its monoalkylated derivatives 1 (Scheme [1]).[4] Herein, reactions of Meldrum’s acids 1 and 2 proceeding with destruction of 1,3-dioxane cycle are reviewed.

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Scheme 1