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Title
Japanese:Scope of chemical fixation of carbon dioxide catalyzed by a bifunctional monomeric tungstate. 
English:Scope of chemical fixation of carbon dioxide catalyzed by a bifunctional monomeric tungstate. 
Author
Japanese: Keigo Kamata, Toshihiro Kimura, Hanako Sunaba, Noritaka. Mizuno.  
English: Keigo Kamata, Toshihiro Kimura, Hanako Sunaba, Noritaka. Mizuno.  
Language English 
Journal/Book name
Japanese:Catalysis Today 
English:Catalysis Today 
Volume, Number, Page Vol. 226        pp. 160-166
Published date 2014 
Publisher
Japanese:Elsevier B.V. 
English:Elsevier B.V. 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1016/j.cattod.2013.09.054
Abstract The tungsten-oxo moiety in a simple monomeric tungstate, TBA2[WO4] (I, TBA = tetrabutylammonium), showed bifunctional activation of both CO2 and 1,2-phenylenediamine (II). It was confirmed by 1H, 13C, and 183W NMR spectroscopies that adducts I-II and I-(CO)n (n = 1 and 2) were formed by the reactions of I with II and CO2, resp. These adducts played important roles in formation of the corresponding carbamic acid intermediates. The present bifunctionality could be applied to chem. fixation of CO2 even at atm. pressure with various kinds of structurally diverse aryl diamines, primary monoamines, propargylic alcs., and propargylic amines into cyclic urea derivs., 1,3-disubstituted urea derivs., cyclic carbonates, and cyclic carbamates, resp. [on SciFinder(R)]

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