Efficient Synthesis of Organic Carbonates to the Multigram Level from CO2 Using a New Chitin-Supported Catalyst

被引：12

作者：

Diaz Velazquez, Heriberto ^{[1
]}

Guzman Pantoja, Javier ^{[1
]}

Meneses Ruiz, Edith ^{[1
]}

Garcia de Leon, Roberto ^{[1
]}

Martinez Palou, Rafael ^{[1
]}

机构：

[1] Inst Mexicano Petr, Gerencia Refinac Hidrocarburos, Eje Cent Lazaro Cardenas 152, Mexico City 07730, DF, Mexico

来源：

CATALYSIS LETTERS | 2017年 / 147卷 / 09期

关键词：

Organic carbonates; CO2; cycloaddition; Synergistic catalysts; DIMETHYL CARBONATE; CYCLIC CARBONATES; EPOXIDES; DIOXIDE; METHANOL; PROGRESS;

D O I：

10.1007/s10562-017-2123-4

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：

A new a chitin-supported KI catalyst system has shown highly efficient activity towards the cycloaddition of CO2 to epoxides. The cooperative effect of this catalyst system is enhanced when a little amount of DBU as additive is added at a KI:DBU weight ratio of 8:2, which enables scaling-up procedures to a multigram level, using a widely available biopolymer such as chitin. Furthermore, the same catalyst composition is able to activate the trans-esterification of propylene carbonate to dimethyl carbonate under smooth reaction conditions using a KI:DBU weight ratio 1:1. A combination of DBU with a chitin-supported KI catalyst system has shown highly efficient activity towards the cycloaddition of co(2) to epoxides. the synergetic effect in this three-component catalyst system is enhanced at a KI:DBU weight ratio of 8:2, which enables scaling-up procedures to a multigram level, using a widely available biopolymer such as chitin. Furthermore, the same catalyst composition is able to activate the trans-esterification of propylene carbonate to dimethyl carbonate under smooth reaction conditions. [GRAPHICS] .

引用

页码：2260 / 2268

页数：9

共 40 条

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