Title:
PROCESS FOR PRODUCING AROMATIC ALDEHYDE
Document Type and Number:
WIPO Patent Application WO/2005/023745
Kind Code:
A1
Abstract:
An aromatic aldehyde of the general formula: (3) (wherein R’ and n are as defined below) is produced by a process characterized in that a benzyl compound of the general formula: (1) (wherein R represents a hydrogen atom, etc.; n is an integer of 1 to 6; and R’s may be identical with or different from each other, and each represent a hydrogen atom, an alkyl group, a substituted or unsubstituted phenyl group, etc.) is reacted with a bromoxide of the general formula: MBrOm (2) (wherein M represents a hydrogen atom or a metal atom; and m is an integer of 1 to 3) in the presence of an acid catalyst. Aromatic aldehyde compounds can be produced with high selectivity by simple operation without the need to use expensive catalysts and transition metals.
Inventors:
KAWAZOE KENTARO (JP)
Application Number:
PCT/JP2003/010872
Publication Date:
March 17, 2005
Filing Date:
August 27, 2003
Export Citation:
Assignee:
IHARA CHEMICAL IND CO (JP)
KAWAZOE KENTARO (JP)
KAWAZOE KENTARO (JP)
International Classes:
C07C45/30; C07C201/12; C07C205/44; (IPC1-7): C07C47/54; C07C45/30; C07C201/12; C07C205/19; C07C47/575; C07C47/55; C07C47/546; C07C47/542
Foreign References:
| JPS6450836A | 1989-02-27 | |||
| JPH0977705A | 1997-03-25 |
Other References:
KAJIGAESHI S. ET AL.: "Oxidation of alcohols and ethers using sodium bromate-hydrobromic acid system", BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, vol. 59, no. 3, 1986, pages 747 - 750, XP002903476
TETRAHEDRON LETT., vol. 39, 1998, pages 7549
J. CHEM. RESEARCH(S), 1998, pages 100
See also references of EP 1661877A4
TETRAHEDRON LETT., vol. 39, 1998, pages 7549
J. CHEM. RESEARCH(S), 1998, pages 100
See also references of EP 1661877A4
Attorney, Agent or Firm:
Aoki, Atsushi (Ishida & Associates Toranomon 37 Mori
Bldg., 5-1, Toranomon 3-chom, Minato-ku Tokyo, JP)
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