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.
已开发了3(2H)-
呋喃酮(几种
天然产物的结构元素)的合成方法,其中将
硝酸甲
硅烷基酯或腈氧化物与
乙烯基酮缩合以形成5-酰基-2-
异恶唑啉,并被
钛离子还原或催化还原生成1,4-二酮-2-醇,并用
乙酸钠在
乙酸中环化。