Surface-mediated stereoselective hydrogenation of dienes over chromium subcarbonyls encaged in zeolite |
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| Authors: | Yasuaki Okamoto Hiroyuki Onimatsu Masao Hori Yukiko Inui Toshinobu Imanaka |
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| Affiliation: | (1) Department of Chemical Engineering, Faculty of Engineering Science, Osaka University, Toyonaka, 560 Osaka, Japan |
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| Abstract: | Tricarbonyl chromium (0) species encaged in LiX or NaX was found to be highly efficient and stereoselective for the hydrogenation of butadiene at > 230 K. The selectivity to cis-2-butene depended both on the reaction temperature and butadiene pressure. The reaction mechanism is proposed, in which cis-2-butene is formed via ( 4-C4H6)Cr(CO)3, while 1-butene via (2-C4H6)Cr(CO)3 and (2-C4H6)2Cr(CO)3. |
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| Keywords: | Butadiene hydrogenation chromium carbonyl zeolite |
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