Copper-mediated construction of benzothieno[3,2-b]benzofurans by intramolecular dehydrogenative C-O coupling reaction

被引：10

作者：

Ai, Liankun ^{[1
]}

Ajibola, Ibrahim Yusuf ^{[1
]}

Li, Baolin ^{[1
]}

机构：

[1] Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China

来源：

RSC ADVANCES | 2021年 / 11卷 / 57期

基金：

中国国家自然科学基金;

关键词：

FIELD-EFFECT TRANSISTORS; FLASH VACUUM PYROLYSIS; ORGANIC SEMICONDUCTORS; CYCLIZATION; DIBENZOFURANS; ARYLPHENOLS; DERIVATIVES; TRANSPORT; DESIGN;

D O I：

10.1039/d1ra06985c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An efficient method to synthesize benzothieno[3,2-b]benzofurans via intramolecular dehydrogenative C-H/O-H coupling has been developed. Good to excellent yields (64-91%) could be obtained no matter if the substituted group is electron-donating or electron-withdrawing. Notably, three-to-six fused ring thienofuran compounds could be constructed using this method. A reaction mechanism study showed that 1,1-diphenylethylene can completely inhibit the reaction. Therefore, it is a radical pathway initiated by single electron transfer between the hydroxyl of the substrate and the copper catalyst.

引用

页码：36305 / 36309

页数：5

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