作者:Patrick Pollet、Suzanne Gelin
DOI:10.1016/0040-4020(78)80165-3
日期:1978.1
Through our investigation of synthetic routes to tetronic acids, elaboration and cyclization of γ-acetoxy-β-ketoesters were examined. Synthesis of these β-ketoesters 2 has been realized by selective monoacylation of the magnesioenolate of monoethyl malonate. Lactonization of 2 leading to tetronic acids or to 4-alkoxy-furan-2(5H)-ones is reported.
通过我们对合成四氢苯甲酸的合成途径的研究,对γ-乙酰氧基-β-酮酸酯的合成和环化进行了研究。这些β-酮酸酯2的合成已经通过丙二酸单乙酯的镁烯酸酯的选择性单酰化来实现。据报道,对2进行漆酸化,形成tetronic酸或4-烷氧基-呋喃-2(5 H)-one。