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Patent Searching and Data


Title:
METHOD FOR PRODUCING ETHER
Document Type and Number:
WIPO Patent Application WO/2021/235309
Kind Code:
A1
Abstract:
Provided is a method with which it is possible to produce a corresponding ether from a carboxylic acid ester, and in which the reaction product and catalyst can be separated easily, without releasing large amounts of salt waste or harmful waste. A method for producing an ether, involving reducing a carboxylic acid ester by molecular hydrogen in the presence of the following catalyst to produce a corresponding ether in which the -C(=O)O- group of the carboxylic acid ester has been converted into a -CH2O- group. Catalyst: A catalyst in which the following M1 and M2 are supported as metal species on the following support. M1: platinum, ruthenium, rhodium, palladium, or iridium. M2: molybdenum, rhenium, tungsten, or vanadium. Support: zirconium oxide, titanium oxide, cerium oxide, or hydroxyapatite.

Inventors:
MIZUGAKI TOMOO (JP)
SAKODA KATSUMASA (JP)
HIRAI YUUICHIROU (JP)
KAJIKAWA YASUTERU (JP)
Application Number:
PCT/JP2021/018184
Publication Date:
November 25, 2021
Filing Date:
May 13, 2021
Export Citation:
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Assignee:
UNIV OSAKA (JP)
DAICEL CORP (JP)
International Classes:
C07C1/22; B01J23/648; B01J23/652; B01J23/656; B01J27/19; C07B61/00; C07C9/15; C07C29/149; C07C31/125; C07C41/18; C07C43/04
Other References:
YUEHUI LI; CHRISTOPH TOPF; XINJIANG CUI; KATHRIN JUNGE; AND MATTHIAS BELLER: "Lewis Acid Promoted Ruthenium(II)-Catalyzed Etherifications by Selective Hydrogenation of Carboxylic Acids/Esters", ANGEWANDTE CHEMIE , INTERNATIONAL EDITION, vol. 54, 1 January 2015 (2015-01-01), pages 5196 - 5200, XP055614511, DOI: 10.1002/anie.201500062
NORIO SAKAI, TOSHIMITSU MORIYA, TAKEO KONAKAHARA: "An Efficient One-Pot Synthesis of Unsymmetrical Ethers: A Directly Reductive Deoxygenation of Esters Using an InBr3/Et3SiH Catalytic System", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 72, no. 15, 1 July 2007 (2007-07-01), pages 5920 - 5922, XP055038251, ISSN: 0022-3263, DOI: 10.1021/jo070814z
NITTA, AKIHIRO ET AL.: "Selective hydrogenation from carboxylic acid to alcohol using Pt-Mo catalysts", PREPRINTS OF THE FORUM A OF 122ND CATSJ MEETING, 19 September 2018 (2018-09-19)
MIZUGAKI, TOMOO ET AL.: "Hydroxyapatite-immobilized platinum-Highly selective hydrogenation of a carboxylic acid by a molybdenum catalyst", PREPRINTS OF THE FORUM A OF 120TH CATSJ MEETING, 5 September 2017 (2017-09-05)
JOHANNES ULLRICH; BERNHARD BREIT: "Selective Hydrogenation of Carboxylic Acids to Alcohols or Alkanes Employing a Heterogeneous Catalys", ACS CATALYSIS, vol. 8, no. 2, 2 February 2018 (2018-02-02), pages 785 - 789, XP055733005, ISSN: 2155-5435, DOI: 10.1021/acscatal.7b03484
Attorney, Agent or Firm:
GOTO & CO. (JP)
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