Direct Syntheses of Benzofuran-2(3<i>H</i>)-ones and Benzofuran-3(2<i>H</i>)-ones from 1-(2-Hydroxyphenyl)alkan-1-ones by CuBr<sub>2</sub>or CuCl<sub>2</sub>
作者:Hideyoshi Miyake、Akinori Nishimura、Misato Yago、Mitsuru Sasaki
DOI:10.1246/cl.2007.332
日期:2007.2
New syntheses of benzofuran-2(3H)-ones and benzofuran-3(211)-ones from l-(2-hydroxyphenyl)alkan-1-ones via oxidative cyclization by CuBr 2 or CuCl 2 are described. A new synthesis of 1H-isochromene-1,4(3H)-diones via similar procedures is also described.
描述了 benzofuran-2(3H)-ones 和 benzofuran-3(211)-ones 从 1-(2-hydroxyphenyl)alkan-1-ones 通过 CuBr 2 或 CuCl 2 氧化环化的新合成方法。还描述了通过类似程序合成 1H-isochromene-1,4(3H)-diones 的新方法。