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Title:
IMMOBILIZED LEWIS ACID CATALYSTS COATED WITH IONIC LIQUIDS AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/105668
Kind Code:
A1
Abstract:
The invention provides a novel immobilized Lewis acid catalyst which exhibits high catalytic activity in an aqueous solution and which permits recovery and reuse or long-term continuous use. The invention relates to an immobilized Lewis acid catalyst comprising a solid substance and a Lewis acid supported on the surface of the solid substance by chemical bonding, wherein the surface of the solid substance and the peripheries of the Lewis acid are coated with an ionic liquid, more specifically, an immobilized Lewis acid catalyst comprising a solid substance such as silica gel or an organic polymer and a Lewis acid stable even in water which is supported on the surface of the solid substance by chemical bonding, wherein the surface of the solid substance and the peripheries of the Lewis acid are completely or partially coated with a hydrophobic ionic liquid; a process for the production of the catalyst; use thereof; and a process for the preparation of compounds with the catalyst.

Inventors:
KOBAYASHI, Shu (2-19, Kandatsukasa-cho Chiyoda-k, Tokyo 48, 1010048, JP)
小林 修 (〒48 東京都千代田区神田司町2-19 Tokyo, 1010048, JP)
MORI, Yuichiro (4-1-305, Sakura 2-chome Setagaya-k, Tokyo 53, 1560053, JP)
Application Number:
JP2007/054770
Publication Date:
September 20, 2007
Filing Date:
March 12, 2007
Export Citation:
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Assignee:
Japan Science and Technology Agency (1-8 Honcho 4-chome, Kawaguchi-shi Saitama, 12, 3320012, JP)
独立行政法人科学技術振興機構 (〒12 埼玉県川口市本町四丁目1番8号 Saitama, 3320012, JP)
KOBAYASHI, Shu (2-19, Kandatsukasa-cho Chiyoda-k, Tokyo 48, 1010048, JP)
小林 修 (〒48 東京都千代田区神田司町2-19 Tokyo, 1010048, JP)
International Classes:
B01J31/26; C07C29/40; C07C33/30; C07C221/00; C07C225/18; C07C327/22; C07B61/00
Domestic Patent References:
WO2005028446A1
Foreign References:
JP2003512926A
JP2001137710A
JP2004243247A
JPH11244705A
JP2001137710A
JP2005254115A
JP2002265394A
JP2002275118A
JP2004269846A
JP2005314500A
JP2003512926A
JP2003535054A
JP2005514033A
JP2006500418A
Other References:
DECASTRO C. ET AL.: 'Immobilised Ionic Liquids as Lewis Acid Catalysts for the Alkylation of Aromatic Compounds with Dodecene' JOURNAL OF CATALYSIS vol. 196, 2000, pages 86 - 94, XP004465156
HAGIWARA H. ET AL.: 'Sustainable Mizoroki-Heck reaction in water: remarkably high activity of Pd(OAc)2 immobilized on reversed phase silica gel with the aid of an ionic liquid' CHEM. COMMUN. 2005, pages 2942 - 2944, XP002412336
GU Y. ET AL.: 'A Heterogeneous Silica-Supported Scandium / Ionic Liquid Catalyst System for Organic Reactions in Water' ANGEWANDTE CHEMIE INTERNATIONAL EDISION vol. 45, no. 43, 06 November 2006, pages 7217 - 7220, XP003018102
See also references of EP 1997555A1
KOBAYASHI, S. EUR. J. ORG. CHEM. 1999, page 15
IIMURA, S.; MANABE, K.; KOBAYASHI, S. TETRAHEDRON vol. 60, 2004, page 7673
WELTON T. ET AL. CHEM. REVIEWS vol. 99, 1999, pages 2071 - 2083
WASSERSCHEID P ET AL.: 'Angewadte Chemie', vol. 39, 2000 pages 3772 - 3787
GRUTTADAURIA, M. ET AL. ADV. SYNTH. CATAL. vol. 348, 2006, page 82
JONES, C.W.; TSUJI, K; DAVIS, M. E. NATURE vol. 393, 1998, page 52
HUDDLESTON, J.G. ET AL. GREEN CHEM. vol. 3, 2001, page 156
Attorney, Agent or Firm:
SAEKI, Norio (4th Floor, Aminosan Kaikan Building 15-, Nihonbashi 3-chome Chuo-ku Tokyo 27, 1030027, JP)
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