CYCLOADDITIONS TO KETENE-S,N-ACETALS. NEW SYNTHESES OF BENZO[b]- AND NAPHTHO[1,2-b]FURANS, 1-BENZ-AND NAPHTH[1,2-b]OXEPININS, AND BENZ[b]FURAN-2-ONES
作者:Hiroki Takahata、Akira Anazawa、Keiko Moriyama、Takao Yamazaki
DOI:10.1246/cl.1986.5
日期:1986.1.5
Annulation of ketene-S,N-acetal with 1,4-quinones gave benzo [b]- and naphtho[1,2-b]furans which were converted to 1-benz- and naphth[1,2-b]oxepins and benzo[b]furan-2-ones.
酮-S,N-乙缩醛与 1,4-醌环化生成苯并[b]-和萘并[1,2-b]呋喃,然后转化为 1-苯并和萘并[1,2-b]氧杂卓和苯并[b]呋喃-2-酮。