Diversified Synthesis of Furans by Coupling between Enols/1,3-Dicarbonyl Compounds and Nitroolefins: Direct Access to Dioxa[5]helicenes

被引：39

作者：

Ghosh, Monoranjan ^{[1
]}

Santra, Sougata ^{[1
]}

Mondal, Pallab ^{[1
]}

Kundu, Dhiman ^{[1
]}

Hajra, Alakananda ^{[1
]}

机构：

[1] Visva Bharati, Dept Chem, Santini Ketan 731235, W Bengal, India

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2015年 / 10卷 / 11期

关键词：

denitration; furans; helicenes; heterocycles; synthetic methods; BAYLIS-HILLMAN ACETATES; POLYSUBSTITUTED FURANS; 1,3-DICARBONYL COMPOUNDS; REGIOSELECTIVE SYNTHESIS; REGIOSPECIFIC SYNTHESIS; ANNULATION; KETONES; NITROALKANES; BENZOFURANS; CYCLIZATION;

D O I：

10.1002/asia.201500710

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A versatile method for the diversified synthesis of furans and arenofurans has been developed that proceeds through K2CO3-promoted cyclization between enols/1,3-dicarbonyl compounds and nitroolefins at reflux in EtOH. This facile method has been successfully employed in the synthesis of benzotrifuran derivatives, which are useful hole-transporting materials. This procedure also provides direct access to dioxa[5]helicenes. This reaction offers a broad substrate scope, uses an inexpensive base and environmentally benign solvent, and is operationally simple.

引用

页码：2525 / 2536

页数：12

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