Observation of guanidine-carbon dioxide complexation in solution and its role in the reaction of carbon dioxide and propargylamines

被引：56

作者：

Nicholls, Rachel ^{[1
]}

Kaufhold, Simon ^{[2
]}

Nguyen, Bao N. ^{[1
]}

机构：

[1] Univ Leeds, Sch Chem, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Ulm, D-89081 Ulm, Germany

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2014年 / 4卷 / 10期

关键词：

CONSISTENT BASICITY SCALE; ACID-BASE EQUILIBRIA; FTIR SPECTROSCOPY; CHEMICAL FIXATION; NONPOLAR MEDIA; CO2; CAPTURE; CATALYSTS; AMIDINES; DBU; THF;

D O I：

10.1039/c4cy00480a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The first observation of guanidine-CO2 'activation' complexes in solution using ATR-FTIR is reported. While cyclic guanidines TBD and MTBD form stable and detectable complexes with CO2, other guanidines and tertiary amines do not. Correlation with the catalytic activity of these amines/guanidines in the reaction between CO2 and propargylamines indicated that the basicity of the catalyst, rather than its ability to form complexes with CO2, is the origin of catalytic activity.

引用

页码：3458 / 3462

页数：5

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