N-Heterocyclic carbene-nitrogen molybdenum catalysts for utilization of CO2

被引：7
作者：
Chen, Fei [1 ]
Tao, Sheng [2 ]
Liu, Ning [2 ]
Dai, Bin [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
[2] Shihezi Univ, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Sch Chem & Chem Engn, North Fourth Rd, Shihezi 832003, Xinjiang, Peoples R China
来源：
POLYHEDRON | 2021年 / 196卷
关键词：
Mo catalysis; Carbon dioxide; Cycloaddition; Cyclic carbonate; Carboxylation; CARBON-DIOXIDE UTILIZATION; CYCLIC CARBONATES; BIFUNCTIONAL CATALYSTS; SUSTAINABLE CONVERSION; EFFICIENT CATALYSTS; IONIC LIQUIDS; EPOXIDES; COMPLEXES; POLYCARBONATES; FIXATION;
D O I：
10.1016/j.poly.2020.114990
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Three new N-heterocyclic carbene-nitrogen molybdenum complex was synthesized, and its catalytic activity was evaluated in the cycloaddition of epoxides with CO2. The molybdenum complex combined with tetrabutyl ammonium iodide (TBAI) resulted in a catalytic system for efficient conversion of a wide range of terminal and internal epoxides under 80 degrees C and 5-7 bar pressure for CO2. The cooperative catalysis mechanism between molybdenum complex and TBAI was elucidated, in which molybdenum complex was used as Lewis acid, and TBAI was employed as nucleophilic reagent. In addition, the NHC-Mo catalytic system was also successfully applied for the direct carboxylation of terminal alkynes with CO2. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：9
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