POLYETHYLENE GLYCOL-ENHANCED CHEMOSELECTIVE SYNTHESIS OF ORGANIC CARBAMATES FROM AMINES, CO2, AND ALKYL HALIDES

被引：25

作者：

Kong, De-Lin

He, Liang-Nian ^{[1
]}

Wang, Jin-Quan

机构：

[1] Nankai Univ, State Key Lab, Tianjin 300071, Peoples R China

来源：

SYNTHETIC COMMUNICATIONS | 2011年 / 41卷 / 22期

基金：

中国国家自然科学基金;

关键词：

Amine; carbon dioxide; organic carbamate; polyethylene glycol; potassium carbonate; AQUEOUS BIPHASIC SYSTEMS; CARBON-DIOXIDE; POLY(ETHYLENE GLYCOL); HIGHLY EFFICIENT; REACTIVE EXTRACTION; UREA DERIVATIVES; ONE-POT; SOLVENT; URETHANES; OXIDATION;

D O I：

10.1080/00397911.2010.517890

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An efficient and environmentally benign method for the synthesis of organic carbamates was developed. Amines, CO2, and alkyl halides underwent a three-component reaction with the aid of K2CO3 and polyethylene glycol (PEG, MW 400), affording the organic carbamates under ambient conditions. PEG could presumably act as a solvent and phase-transfer catalyst (PTC). Notably, the presence of PEG could also depress the alkylation of both the amine and the carbamate, thus resulting in enhanced selectivity toward the target carbamate. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) to view the free supplemental file.

引用

页码：3298 / 3307

页数：10

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