PRODUCTION OF DIOL

Japanese Patent JP3857360

B2

PROBLEM TO BE SOLVED: To obtain a diol useful as a raw material for synthetic resins and medicines in good yield by subjecting a dicarboxylic acid to hydrogenerating reduction in the presence of a catalyst.
SOLUTION: A dicarboxylic acid of the formula, HOOC-R-COOH (R is a substitutable saturated, unsaturated or aromatic divalent 3-20C hydrocarbon) is subjected to hydrogenerating reduction in the presence of a catalyst at 100-200°C under 20-120kg/cm2 pressure to provide the objective diol of the formula, HOCH2-R'-CH2OH (R is as same as R when R is a saturated hydrocarbon and R' is a saturated hydrocarbon having same skeleton as R when R is an unsaturated or aromatic hydrocarbon). A catalyst comprising a metal selected from Ru and Rh and/or its metal compound and a metal selected from VI b group and Re and/or its metal compound is used for the above purpose. The catalyst may be supported on a support.

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Takamasa Fuchigami
Toka Ka
Noriko Wakasa
Katsuhiko Tahara

JP20186196A

December 13, 2006

July 31, 1996

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Sagami Central Chemical Research Institute
Arakawa Chemical Industry Co., Ltd.

B01J23/652; C07C29/149; B01J23/656; C07B61/00; C07C31/20; C07C33/035; C07C37/56; C07C39/08; (IPC1-7): C07C31/20; B01J23/652; B01J23/656; C07C29/149; C07C33/035; C07C37/56; C07C39/08; //C07B61/00

JP61275237A
JP61275234A
JP49132003A
JP5246915A
JP7082188A
JP11500958A
JP8245444A

WO1995024371A1

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