期刊
JOURNAL OF CO2 UTILIZATION
卷 19, 期 -, 页码 28-32出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2017.03.002
关键词
Carbon dioxide fixation; Organocatalysis; Cycloaddition; Ambient conditions; Recyclability
资金
- National Key Research and Development Program [2016YFA0602900]
- National Natural Science Foundation of China [21472103, 21421001, 21421062]
- Natural Science Foundation of Tianjin Municipality [16JCZDJC39900]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130031110013]
- MOE Innovation Team of China [IRT13022]
The combination of N-Iodosuccinimide (NIS) and DBU is developed as an efficient organocatalyst system for the cycloaddition of carbon dioxide (CO2) at atmospheric pressure with epoxides without utilization of additional solvents, forming cyclic carbonates in high yields with a broad substrate scope. DBU functions as a nucleophilic promoter for the activation of NIS to be a more electrophilic iodine species thus being capable of activating the epoxides. On the other hand, NIS also provides a nucleophilic nitrogen species, i.e. succinimide anion for ring-opening of the epoxide. (C) 2017 Elsevier Ltd. All rights reserved.
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