Studies on the synthesis of furans by anionic cyclization of 4-pentynones
作者:Ralf Vieser、Wolfgang Eberbach
DOI:10.1016/0040-4039(95)00785-b
日期:1995.6
The synthesis of 5-substituted 2-carbomethoxymethyl-furans 4 is achieved by base promoted cyclization of the 4-pentynones 3a-e which are easily accessible from the 4-pentynal 1.