期刊
CHEMCATCHEM
卷 4, 期 12, 页码 2031-2035出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201200414
关键词
chitosan; heterogeneous; hydrogenation; parahydrogen-induced polarization; rhodium
资金
- RFBR [11-03-93995-CSIC a, 11-03-00248-a, 12-03-00403-a]
- RAS [5.1.1]
- SB RAS [60, 61, 57, 122]
- program of support of leading scientific schools [NSh-2429.2012.3]
- Russian Government [11.G34.31.0045]
Hydrogenation of 1,3-butadiene and 1-butyne over the Rh/chitosan catalyst in gaseous and liquid phases was investigated by using the NMR and parahydrogen-induced polarization technique. The Rh/chitosan system was a very selective catalyst for the partial hydrogenation of 1,3-butadiene and 1-butyne to 1- and 2-butenes. The catalyst demonstrated high activity in the hydrogenation of 1-butyne after its activation in the hydrogenation of 1,3-butadiene. Therefore, the Rh/chitosan catalyst was used for the catalytic removal of 1,3-butadiene and 1-butyne from gaseous butene streams. Moreover, the syn- and anti-addition of the hydrogen molecule to substrates proceeded in a pairwise manner in the gas phase heterogeneous hydrogenation as was demonstrated by parahydrogen-induced polarization. However, in the liquid phase hydrogenation of 1-butyne, both hydrogen atoms from the same hydrogen molecule were added to 1-butyne only through the syn-addition route.
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