JPS55167239A - Preparation of orcinol - Google Patents
Preparation of orcinolInfo
- Publication number
- JPS55167239A JPS55167239A JP7419879A JP7419879A JPS55167239A JP S55167239 A JPS55167239 A JP S55167239A JP 7419879 A JP7419879 A JP 7419879A JP 7419879 A JP7419879 A JP 7419879A JP S55167239 A JPS55167239 A JP S55167239A
- Authority
- JP
- Japan
- Prior art keywords
- salt
- give
- alkali
- product
- toluenesulfonic 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare highly pure orcinol in high yield, by sulfonating an alkali(ne earth) metal salt of m-toluenesulfonic acid to give the disulfonated product, converting the product to the dialkali salt and melting the salt in the presence of a caustic alkali.
CONSTITUTION: A toluenesulfonic acid mixture containing a large amount of m- isomer is mixed with a ≥15C alkyl or aralkyl tertiary amine and an organic solvent to extract the amine lake of toluenesulfonic acid into the organic layer, and an aqueous alkali solution is added to the layer to give the alkali(ne earth) metal salt. The salt is slowly added to 1W3 times mole of anhydrous sulfuric acid-containing oleum or sulfur trioxide and maintained at 100W180°C to effect the disulfonation reaction. The product is subjected to the amine lake-forming process, etc. to give the dialkali metal salt of 1,3,5-toluenedisulfonic acid. The salt is maintained at 300W400°C together with the flakes or an aqueous solution of caustic soda, etc. to give the desired product.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7419879A JPS55167239A (en) | 1979-06-12 | 1979-06-12 | Preparation of orcinol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7419879A JPS55167239A (en) | 1979-06-12 | 1979-06-12 | Preparation of orcinol |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55167239A true JPS55167239A (en) | 1980-12-26 |
Family
ID=13540239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7419879A Pending JPS55167239A (en) | 1979-06-12 | 1979-06-12 | Preparation of orcinol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55167239A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5073797A (en) * | 1987-03-24 | 1991-12-17 | Matsushita Electric Industrial Co., Ltd. | Toner sealing arrangement for a dry developing device of an electrostatic copier |
-
1979
- 1979-06-12 JP JP7419879A patent/JPS55167239A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5073797A (en) * | 1987-03-24 | 1991-12-17 | Matsushita Electric Industrial Co., Ltd. | Toner sealing arrangement for a dry developing device of an electrostatic copier |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR241444A1 (en) | Neutralization of organic sulphuric acid | |
JPS55167239A (en) | Preparation of orcinol | |
JPS5531059A (en) | Preparation of alkali metal p-styrenesulfonate | |
JPS5618941A (en) | Production of 2,2,2-trichloroethyl methacrylate | |
JPS5540648A (en) | Selective production of 1,6-naphthalenedisolfonic acid | |
JPS5498738A (en) | Method of sulfonation | |
JPS54141780A (en) | 5-n-butyl-2-thiopicoline-anilide and its preparation | |
JPS5657728A (en) | Preparation of 4,4'-dihydroxybiphenyl | |
JPS5668634A (en) | Purification of p,p'-biphenols | |
JPS5677251A (en) | Preparation of anthraquinone intermediate | |
JPS5564565A (en) | Preparation of styrenesulfonic acid alkali metal salt | |
JPS5344528A (en) | Separation of dihalogenobenzenes | |
JPS579774A (en) | Production of 2-aminobenzothiazole | |
JPS54130620A (en) | Preparation of alpha-quinacridone pigment | |
JPS54149400A (en) | Production of hydroxylamine-o-sulfonic acid | |
GB1389104A (en) | Process for preparing beta, delta-dioxoenanthaldehyde dialkyl acetals | |
JPS5444655A (en) | Production of 1-chloroanthroquinone-2-carboxylic acid | |
JPS54130621A (en) | Preparation of beta-quinacridone pigment | |
JPS5692245A (en) | Production of 2-hydroxynaphthalene-3-carboxylic acid | |
JPS54130622A (en) | Preparation of gamma-quinacridone pigment | |
JPS5557535A (en) | Preparation of delta-ketocarboxylic acid | |
JPS5527130A (en) | Separation of addition compound derived from 1-amino-8- naphthol 3,6-disolfonic acid or its salt and 1-amino- naphthalene-3,6,8-trisulfonic acid or its salt | |
JPS54132625A (en) | Preparation of gamma-type quinacridone | |
ATE39478T1 (en) | PROCESS FOR THE PRODUCTION OF ALPHACHLORACETETTIES|UREMONOMETHYLAMIDE. | |
JPS5538305A (en) | Preparation of hedta |