引用本文:
Fa Wang Chen, Tao Dong, Xiao Fang Li, Tie Gang Xu, Chang Wen Hu. Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate:Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin[J]. Chinese Chemical Letters,
2011, 22(7): 871-874.
doi:
10.1016/j.cclet.2011.01.004
Citation: Fa Wang Chen, Tao Dong, Xiao Fang Li, Tie Gang Xu, Chang Wen Hu. Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate:Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin[J]. Chinese Chemical Letters, 2011, 22(7): 871-874. doi: 10.1016/j.cclet.2011.01.004
Citation: Fa Wang Chen, Tao Dong, Xiao Fang Li, Tie Gang Xu, Chang Wen Hu. Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate:Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin[J]. Chinese Chemical Letters, 2011, 22(7): 871-874. doi: 10.1016/j.cclet.2011.01.004
Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate:Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin
摘要:
The green synthesis of chloropropylene carbonate via the coupling reaction of carbon dioxide and epichlorohydrin had been achieved using halogen-free and single-component catalysts tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate [(n-C4H9)4N]3H7GeW9M3(H2O)3O37 (M = CuⅡ, NiⅡ, CoⅡ and MnⅡ) without any solvent. The catalytic activity was significantly depended on the transition metal introduced in polyoxometalates. [(n-C4H9)4N]3H7GeW9Mn3(H2O)3O37 exhibited the highest catalytic activity with 94.9% conversion for epichlorohydrin and 98% selectivity for chloropropylene carbonate in 3 h. Plausible mechanism was proposed based on the results.
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关键词:
- Cyclic carbonate
- / Catalysis
- / Carbon dioxide
- / Polyoxometalates
English
Tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate:Halogen-free and single-component catalysts for the coupling reaction of carbon dioxide and epichlorohydrin
Abstract:
The green synthesis of chloropropylene carbonate via the coupling reaction of carbon dioxide and epichlorohydrin had been achieved using halogen-free and single-component catalysts tetrabutylammonium salts of tritransition-metal-substituted A-α-tungstogermanate [(n-C4H9)4N]3H7GeW9M3(H2O)3O37 (M = CuⅡ, NiⅡ, CoⅡ and MnⅡ) without any solvent. The catalytic activity was significantly depended on the transition metal introduced in polyoxometalates. [(n-C4H9)4N]3H7GeW9Mn3(H2O)3O37 exhibited the highest catalytic activity with 94.9% conversion for epichlorohydrin and 98% selectivity for chloropropylene carbonate in 3 h. Plausible mechanism was proposed based on the results.
-
Key words:
- Cyclic carbonate
- / Catalysis
- / Carbon dioxide
- / Polyoxometalates
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