期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 303, 期 1-2, 页码 72-77出版社
ELSEVIER
DOI: 10.1016/j.molcata.2008.12.017
关键词
Aqueous biphasic catalysis; Cyclodextrin; Hydroformylation; Long-chain olefin; Mass spectrometry
资金
- Centre National de la Recherche Scientifique (CNRS)
- Ministere l'Education et de la Recherche [2007-2010]
- European community (FEDER)
- Fonds d'Industrialisation du Bassin Minier (FIBM)
- ministere de l'education nationale, de l'enseignement superieur et de la recherche
- Universite d'Artois
A crude mixture of randomly methylated beta-cyclodextrin (RAME-beta-CD) has been fractionated by chromatographic column to evaluate the influence of the methylation degree on activity and selectivity of a rhodium/tris(m-sulfonatophenyl)phosphane trisodium salt (TPPTS) catalytic system in hydroformylation of 1-decene. Each sample of methylated beta-cyclodextrin (beta-CD) was carefully analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and electrospray ionization mass spectrometry (ESI-MS). The catalytic activity was found to gradually increase with the number of methyl groups on the methylated beta-CD whereas the chemoselectivity and regioselectivity remained unchanged. (C) 2009 Elsevier B.V. All rights reserved.
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