Title:
PROCESS FOR PRODUCING CYCLIC UNSATURATED ALDEHYDES
Document Type and Number:
WIPO Patent Application WO/1997/000844
Kind Code:
A1
Abstract:
A process for producing cyclic unsaturated aldehydes by reacting a cyclic conjugated diene compound with an aldehyde of the general formula (I): R-CH=CH-CHO ... (wherein R is C1-C3 alkyl) through the Diels-Alder reaction in the presence of a solid acid catalyst. The above process enables an efficient and industrially advantageous production of cyclic unsaturated aldehydes useful as the raw material of traction oil through the Diels-Alder reaction at a low cost without causing the corrosion of the equipment and can dispense with post-treatment after the reaction.
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Inventors:
OHNO TAKASHI (JP)
TSUBOUCHI TOSHIYUKI (JP)
TSUBOUCHI TOSHIYUKI (JP)
Application Number:
PCT/JP1996/001720
Publication Date:
January 09, 1997
Filing Date:
June 21, 1996
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
OHNO TAKASHI (JP)
TSUBOUCHI TOSHIYUKI (JP)
OHNO TAKASHI (JP)
TSUBOUCHI TOSHIYUKI (JP)
International Classes:
B01J21/16; B01J27/16; C07B37/12; C07B61/00; C07C45/69; C07C47/445; B01J21/12; (IPC1-7): C07C47/445; C07C45/69; B01J21/12; B01J21/16; B01J27/16
Foreign References:
| JPH0211535A | 1990-01-16 | |||
| JPH07188092A | 1995-07-25 |
Other References:
TETRAHEDRON LETTERS, 25(39), (1984), PIERRE LASZLO and JEAN LUCHETTI, "Easy Formation of Diels-Alder Cycloadducts Between Furans and alpha, beta-Unsaturated Aldehydes and Ketones at Normal Pressure", p. 4387-4388.
TETRAHEDRON, 49(19), (1993), CARLOS CATIVIELA et al., "Silica and Alumina Modified by Lewis Acids as Catalysts in Diels-Alder Reactions of Carbonyl-Containing Dienophiles", p. 4073-4084.
See also references of EP 0860421A4
TETRAHEDRON, 49(19), (1993), CARLOS CATIVIELA et al., "Silica and Alumina Modified by Lewis Acids as Catalysts in Diels-Alder Reactions of Carbonyl-Containing Dienophiles", p. 4073-4084.
See also references of EP 0860421A4
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