ANDERSEN, S. H.;SHARMA, K. K.;TORSSELL, K. B. G., TETRAHEDRON, 1983, 39, N 13, 2241-2245
作者:ANDERSEN, S. H.、SHARMA, K. K.、TORSSELL, K. B. G.
DOI:——
日期:——
US4234616A
申请人:——
公开号:US4234616A
公开(公告)日:1980-11-18
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.