JPS56169637A - Preparation of pyrogallol - Google Patents
Preparation of pyrogallolInfo
- Publication number
- JPS56169637A JPS56169637A JP7409880A JP7409880A JPS56169637A JP S56169637 A JPS56169637 A JP S56169637A JP 7409880 A JP7409880 A JP 7409880A JP 7409880 A JP7409880 A JP 7409880A JP S56169637 A JPS56169637 A JP S56169637A
- Authority
- JP
- Japan
- Prior art keywords
- expressed
- formula
- epoxycyclohexan
- purified
- reaction product
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain pyrogallol from an inexpensive raw material in high yield, by oxidizing cyclohexene as a starting material with O2, purifying the reaction product, reacting the purified reaction product with water, and dehydrogenating the resultant triol compound catalytically.
CONSTITUTION: Cyclohexene expressed by formula I is oxidized in the liquid phase with O2 in the presence of a vanadium catalyst to form 2,3-epoxycyclohexan-1-ol expressed by formula II, and the vanadium catalyst is eliminated from the reaction solution. The 2,3-epoxycyclohexan-1-ol expressed by formula II is then purified and reacted with water to produce a 1,2,3-cyclohexanetriol expressed by formula III, whose aqueous solution is dehydrogenated catalytically in an inert gas atmosphere, to give the aimed compound expressed by formula IV.
USE: An intermediate of an organic synthetic substance, e.g. physiologycally active substance, e.g. an insecticide, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7409880A JPS56169637A (en) | 1980-06-02 | 1980-06-02 | Preparation of pyrogallol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7409880A JPS56169637A (en) | 1980-06-02 | 1980-06-02 | Preparation of pyrogallol |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56169637A true JPS56169637A (en) | 1981-12-26 |
Family
ID=13537363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7409880A Pending JPS56169637A (en) | 1980-06-02 | 1980-06-02 | Preparation of pyrogallol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56169637A (en) |
-
1980
- 1980-06-02 JP JP7409880A patent/JPS56169637A/en active Pending
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