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Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides Catalyzed by a Keggin‐Type Polyoxometalate‐Supported Rhenium Carbonyl Derivate in Ionic Liquid
Author(s) -
Huo Zhiyuan,
Zhao Juan,
Bu Zhanwei,
Ma Pengtao,
Liu Qisen,
Niu Jingyang,
Wang Jingping
Publication year - 2014
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201402575
Subject(s) - polyoxometalate , catalysis , chemistry , ionic liquid , rhenium , bromide , yield (engineering) , inorganic chemistry , heterogeneous catalysis , epoxide , medicinal chemistry , organic chemistry , materials science , metallurgy
Abstract A monovacant Keggin‐type polyoxometalate‐supported trirhenium carbonyl derivate [(CH 3 ) 4 N] 5 H 23 [(PW 11 O 39 ){Re(CO) 3 } 3 (μ 3 ‐O)(μ 2 ‐OH)] 4 ⋅ 24 H 2 O was synthesized. It was used as a catalyst for the synthesis of cyclic carbonates from carbon dioxide and epoxides under mild reaction conditions with co‐catalyst pyrrolidinium bromide. The catalyst system was recycled 10 times with only a small decline in yield. The catalytic mechanism was hypothesized based on experimental results and the frontier orbitals computed by DFT calculations.