Silyl nitronates in organic synthesis. Synthesis of 3(2H)-furanones
作者:Søren H. Andersen、K.K. Sharma、Kurt B.G. Torssell
DOI:10.1016/s0040-4020(01)91946-5
日期:——
A synthesis of 3(2H)-furanones, a structural element of several natural products, has been developed in which silyl nitronates or nitrile oxides are condensed with vinyl ketones to form 5-acyl-2-isoxazolines which are reduced with titanous ions or catalytically to 1,4-diketo-2-ols and cyclized with sodium acetate in acetic acid.