JPS5488227A - Preparation of 2,6-dihydrocy-toluene - Google Patents
Preparation of 2,6-dihydrocy-tolueneInfo
- Publication number
- JPS5488227A JPS5488227A JP15514977A JP15514977A JPS5488227A JP S5488227 A JPS5488227 A JP S5488227A JP 15514977 A JP15514977 A JP 15514977A JP 15514977 A JP15514977 A JP 15514977A JP S5488227 A JPS5488227 A JP S5488227A
- Authority
- JP
- Japan
- Prior art keywords
- methanol
- parts
- methylation
- selective
- ammonium halide
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the title compound useful as a raw material for synthesis or various organic compounds in high yield at low cost, by selective nuclear methylation of resorcin with methanol in the presence of an ammonium halide.
CONSTITUTION: 100 parts by wt. of resorcinol is reacted with methanol in the presence of 0.01W100 parts by wt. of an ammonium halide, e.g. ammonium chloride, in the liquid phase at 300W400°C for 1W10 hr to give 2,6-dihydroxytoluene. The methanol is used in an amount excess of the stoichiometric one, preferably to serve as a medium, for selective muclear methylation of various aromatic dihydroxy compounds.
USE: 2,6-Diaminotoluene which is a raw matenial for pigments.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15514977A JPS5488227A (en) | 1977-12-22 | 1977-12-22 | Preparation of 2,6-dihydrocy-toluene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15514977A JPS5488227A (en) | 1977-12-22 | 1977-12-22 | Preparation of 2,6-dihydrocy-toluene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5488227A true JPS5488227A (en) | 1979-07-13 |
Family
ID=15599597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15514977A Pending JPS5488227A (en) | 1977-12-22 | 1977-12-22 | Preparation of 2,6-dihydrocy-toluene |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5488227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554255A (en) * | 2016-11-04 | 2017-04-05 | 浙江鼎龙科技有限公司 | A kind of preparation method of 2,6 orcin |
| CN116283500A (en) * | 2023-02-13 | 2023-06-23 | 内蒙古源宏精细化工有限公司 | Synthesis method of high-purity 2,6-dihydroxytoluene |
-
1977
- 1977-12-22 JP JP15514977A patent/JPS5488227A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554255A (en) * | 2016-11-04 | 2017-04-05 | 浙江鼎龙科技有限公司 | A kind of preparation method of 2,6 orcin |
| CN116283500A (en) * | 2023-02-13 | 2023-06-23 | 内蒙古源宏精细化工有限公司 | Synthesis method of high-purity 2,6-dihydroxytoluene |
| CN116283500B (en) * | 2023-02-13 | 2024-05-07 | 内蒙古源宏精细化工有限公司 | Synthesis method of high-purity 2, 6-dihydroxytoluene |
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