(Z)-2,2-Dimethyl-5-carboxymethylene-1,3-dioxolan-4-one: a new synthon for the synthesis of α,γ-diketoacid derivatives
作者:Jacques Banville、Gilles Bouthillier、Serge Plamondon、Roger Remillard、Nicholas A. Meanwell、Alain Martel、Michael A. Walker
DOI:10.1016/j.tetlet.2010.04.032
日期:2010.6
The synthesis and reactivity of (Z)-2,2-dimethyl-5-carboxymethylene-1,3-dioxolan-4-one, a new and versatile synthon useful for the synthesis of selectively protected alpha,gamma-diketoacid derivatives, are described. This new, protected form of hydroxyl fumaric acid along with its acid chloride was used to prepare ester, amide, and aryl derivatives. The dioxolane moiety was found to be a convenient functionality that facilitated ready unmasking by straightforward hydrolysis to reveal alpha,gamma-diketoacid derivatives or derivatization to yield ester, amide, and 2,3-pyrrolidinedione derivatives. (C) 2010 Elsevier Ltd. All rights reserved.