Cyclization of 2-(2-bromoethoxy)-acetophenones and 5-(ω-haloalkoxy)-1,5-dihydro-2<i>H</i>-pyrrol-2-ones Formation of five- to eight-membered oxygen-containing heterocycles via intramolecular alkylation
作者:Kirill V Nikitin、Nonna P Andryukhova
DOI:10.1139/v04-011
日期:2004.5.1
Under basic conditions (lithium diisopropylamide or sodium hydride in THF) 2-(2-bromoethoxy)-acetophenones were transformed to 3,4-dihydro[1]benzoxepin-5(2H)-ones (homochromanones) in high yields. ...