Arbusow; Wolkow, Zhurnal Obshchei Khimii, 1959, vol. 29, p. 3279,3284; engl. Ausg. S. 3242, 3246
作者:Arbusow、Wolkow
DOI:——
日期:——
Expeditious and efficient annulation protocol for the synthesis of α,β-unsaturated δ-lactones from β-keto esters
作者:A. Nangia、P. Bheema Rao
DOI:10.1016/s0040-4039(00)74216-x
日期:1992.4
β-Keto esters 6a–3 are transformed into β-keto alcohols 7a–3, which are homologated to phosphonates 9a–e. Intramolecular Horner-Wadsworth-Emmons reaction affords δlactones 10a–d in excellent overall yields.