期刊
TETRAHEDRON
卷 72, 期 33, 页码 5132-5141出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2016.07.007
关键词
Ga(OTf)(3); Benzofurans; Cyclodehydration; Scholl annulation
资金
- Ministry of Science and Technology of the Republic of China [MOST 104-2113-M-037-012]
A synthetic procedure, for the synthesis of a series of functionalized benzofurans 3-5 and benzonaphthofurans 6, starting from intermolecular O-alkylation of alpha-bromoaryl ketones 2 with potassium oxygenated phenoxides 1 followed by Ga(OTf)(3)-catalyzed direct intramolecular cyclodehydration of the resulting alpha-aryloxyaryl ketones, has been developed. The use of various metal triflates was investigated for a facile approach and efficient transformation. Pentacyclic benzophenanthrofurans 7 were prepared via photolytic annulations of 5. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据