JPS5692244A - Preparation of 4-oxocyclohexylacetic acid - Google Patents

Preparation of 4-oxocyclohexylacetic acid

Info

Publication number
JPS5692244A
JPS5692244A JP16929379A JP16929379A JPS5692244A JP S5692244 A JPS5692244 A JP S5692244A JP 16929379 A JP16929379 A JP 16929379A JP 16929379 A JP16929379 A JP 16929379A JP S5692244 A JPS5692244 A JP S5692244A
Authority
JP
Japan
Prior art keywords
acid
water
hydrogenating
catalyst
hydroxyphenylacetic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16929379A
Other languages
Japanese (ja)
Inventor
Yoshio Umemura
Fumio Iwata
Takuji Enomiya
Takahito Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Corp
Original Assignee
Ube Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP16929379A priority Critical patent/JPS5692244A/en
Publication of JPS5692244A publication Critical patent/JPS5692244A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To prepare the titled compound useful as a raw material of carbazole-type or steroid-type antiphlogistic analgesic agent or a remedy for arthritis, in high yield and conversion, by hydrogenating 4-hydroxyphenylacetic acid in the presence of water and a Pd catalyst.
CONSTITUTION: 4-Oxocyclohexylacetic acid is prepared by hydrogenating 4-hydroxyphenylacetic acid in the presence of a Pd catalyst using water. 4-Hydroxyphenylacetic acid is obtained easily, e.g. by hydrogenating 4-hydroxymandelic acid. The Pd catalyst is pref. obtained by supporting 0.1W10wt% of metallic Pd on a carrier such as activated charcoal, silica gel, etc. The amount of water is pref. 0.5W20 liters per 1mol of 4-hydroxyphenylacetic acid. The presence of water gives the conversion and the yield of as high as 97W100% and 90W94%, respectively, in contrast with those of 25W33% and 18W21% attained by using an organic solvent.
COPYRIGHT: (C)1981,JPO&Japio
JP16929379A 1979-12-27 1979-12-27 Preparation of 4-oxocyclohexylacetic acid Pending JPS5692244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16929379A JPS5692244A (en) 1979-12-27 1979-12-27 Preparation of 4-oxocyclohexylacetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16929379A JPS5692244A (en) 1979-12-27 1979-12-27 Preparation of 4-oxocyclohexylacetic acid

Publications (1)

Publication Number Publication Date
JPS5692244A true JPS5692244A (en) 1981-07-25

Family

ID=15883823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16929379A Pending JPS5692244A (en) 1979-12-27 1979-12-27 Preparation of 4-oxocyclohexylacetic acid

Country Status (1)

Country Link
JP (1) JPS5692244A (en)

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