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Merging Sustainability with Organocatalysis in the Formation of Organic Carbonates by Using CO2 as a Feedstock
被引:294
作者:
Whiteoak, Christopher J.
[1
]
Nova, Ainara
[1
]
Maseras, Feliu
[1
,2
]
Kleij, Arjan W.
[1
,3
]
机构:
[1] Inst Chem Res Catalonia ICIQ, Tarragona 43007, Spain
[2] Univ Autonoma Barcelona, Dept Quim, Bellaterra 08193, Spain
[3] Catalan Inst Res & Adv Studies ICREA, Barcelona 08010, Spain
来源:
关键词:
carbon dioxide fixation;
cooperative effects;
cycloaddition;
organocatalysis;
phenols;
CYCLIC CARBONATES;
POLARIZATION FUNCTIONS;
CHEMICAL FIXATION;
IONIC LIQUIDS;
HYDROGEN-BOND;
DIOXIDE;
EFFICIENT;
EPOXIDES;
CATALYST;
MILD;
D O I:
10.1002/cssc.201200255
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The use of phenolic compounds as organocatalysts is discussed in the context of the atom-efficient cycloaddition of carbon dioxide to epoxides, forming useful cyclic organic carbonate products. The presence and cooperative nature of adjacent phenolic groups in the catalyst structure results in significantly enhanced catalytic efficiencies, allowing these CO2 fixation reactions to operate efficiently under virtually ambient conditions. The cooperative effect has also been studied by computational methods. Furthermore, when the cycloaddition reactions are carried out on a larger scale and under solvent-free conditions, further enhancements in activity are observed, combined with the advantageous requirement of reduced loadings of the binary organocatalyst system. The reported system is among one of the mildest and most effective metal-free catalysts for this conversion and contributes to a much more sustainable development of organic carbonate production; this feature has not been the main focus of previous contributions in this area.
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页码:2032 / 2038
页数:7
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