JPS5540647A - Production of 1,3,6-naphthalenetrisulfonic acid - Google Patents
Production of 1,3,6-naphthalenetrisulfonic acidInfo
- Publication number
- JPS5540647A JPS5540647A JP11438378A JP11438378A JPS5540647A JP S5540647 A JPS5540647 A JP S5540647A JP 11438378 A JP11438378 A JP 11438378A JP 11438378 A JP11438378 A JP 11438378A JP S5540647 A JPS5540647 A JP S5540647A
- Authority
- JP
- Japan
- Prior art keywords
- naphthalene
- production
- naphthalenetrisulfonic acid
- sulfonation
- sulfur trioxide
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- ZPBSAMLXSQCSOX-UHFFFAOYSA-N naphthalene-1,3,6-trisulfonic acid Chemical compound OS(=O)(=O)C1=CC(S(O)(=O)=O)=CC2=CC(S(=O)(=O)O)=CC=C21 ZPBSAMLXSQCSOX-UHFFFAOYSA-N 0.000 title abstract 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 abstract 4
- 238000006277 sulfonation reaction Methods 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: The trisulfonation of naphthalene is conducted using a sulfonation agent of sulfur trioxide/pyridine under specific conditions in one step to produce title compound in high yield.
CONSTITUTION: The reaction between naphthalene and sulfur trioxide/pyridine adduct is effected at 230W270°C to produce 1,3,6-naphthalenetrisulfonic acid. The amount of the sulfonation reagent is over 3, usually 3W5 times the molar quantity of the naphthalene. The reaction temperature of lower than 230°C causes the production of disulfonated products and exceeding 270°C undesirably causes the decomposition of the sulfonation reagent.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438378A JPS5540647A (en) | 1978-09-18 | 1978-09-18 | Production of 1,3,6-naphthalenetrisulfonic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438378A JPS5540647A (en) | 1978-09-18 | 1978-09-18 | Production of 1,3,6-naphthalenetrisulfonic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5540647A true JPS5540647A (en) | 1980-03-22 |
| JPS5538338B2 JPS5538338B2 (en) | 1980-10-03 |
Family
ID=14636293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11438378A Granted JPS5540647A (en) | 1978-09-18 | 1978-09-18 | Production of 1,3,6-naphthalenetrisulfonic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5540647A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008511281A (en) * | 2004-08-25 | 2008-04-10 | アクスコ−モーターズ オイ | Axial flux induction electrical device |
-
1978
- 1978-09-18 JP JP11438378A patent/JPS5540647A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008511281A (en) * | 2004-08-25 | 2008-04-10 | アクスコ−モーターズ オイ | Axial flux induction electrical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5538338B2 (en) | 1980-10-03 |
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