期刊
JOURNAL OF CO2 UTILIZATION
卷 27, 期 -, 页码 283-288出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2018.08.009
关键词
Carbon dioxide; Cyclization; Diols; Cyclic carbonates; Monomers
资金
- EPSRC [EP/N022793/1, EP/L016354/1/CDT]
- Royal Society [UF/160021]
- EPSRC [1789625, EP/N022793/1] Funding Source: UKRI
6-, 7- and 8-membered ring cyclic carbonates are of particular interest as monomers for ring-opening polymerisation towards more sustainable polymers. They are traditionally synthesised from diols and phosgene derivatives, and while alternative CO2 methods exist to make 5- and 6-membered cyclic carbonates, there is no report of the synthesis of 7- and 8-membered cyclic carbonates made directly from CO2. Herein we report an efficient one-pot synthesis of cyclic carbonates which uses diols, CO2, tosyl chloride and mild bases (NEt3 or TMP), under ambient temperature and 1 atm of CO2 pressure. Fifteen cyclic carbonates were synthesised, including twelve known monomers, and the first examples of 7- and 8-membered cyclic carbonates made using CO2.
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