FR2351097A1 - Procede de preparation d'acide p-toluene-sulfonique exempt d'isomeres - Google Patents
Procede de preparation d'acide p-toluene-sulfonique exempt d'isomeresInfo
- Publication number
- FR2351097A1 FR2351097A1 FR7714686A FR7714686A FR2351097A1 FR 2351097 A1 FR2351097 A1 FR 2351097A1 FR 7714686 A FR7714686 A FR 7714686A FR 7714686 A FR7714686 A FR 7714686A FR 2351097 A1 FR2351097 A1 FR 2351097A1
- Authority
- FR
- France
- Prior art keywords
- toluene
- preparation
- sulphonic acid
- isomer free
- isomer
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
- C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2621168A DE2621168C3 (de) | 1976-05-13 | 1976-05-13 | Verfahren zur Herstellung von isomerenfreier Toluol-4-sulfonsäure |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2351097A1 true FR2351097A1 (fr) | 1977-12-09 |
FR2351097B1 FR2351097B1 (fr) | 1983-10-21 |
Family
ID=5977828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7714686A Granted FR2351097A1 (fr) | 1976-05-13 | 1977-05-13 | Procede de preparation d'acide p-toluene-sulfonique exempt d'isomeres |
Country Status (6)
Country | Link |
---|---|
US (1) | US4242275A (fr) |
JP (1) | JPS52139042A (fr) |
CH (1) | CH629762A5 (fr) |
DE (1) | DE2621168C3 (fr) |
FR (1) | FR2351097A1 (fr) |
GB (1) | GB1573517A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498736A (en) * | 1978-01-18 | 1979-08-03 | Cosmo Co Ltd | Novel method of sulfonation of lower alkylbenzene using fuming sulfuric acid. |
DE4311381A1 (de) * | 1993-04-06 | 1994-10-13 | Hoechst Ag | Verfahren zur Herstellung von kristallisierten, salzfreien chlorsubstituierten 3-Nitrobenzolsulfonsäure-Hydraten |
CN107963984B (zh) * | 2017-07-03 | 2023-12-22 | 襄阳汉元化工有限公司 | 一种对甲苯磺酸的连续生产系统及方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1290683A (fr) * | 1961-05-31 | 1962-04-13 | Chemetron Corp | Procédé de préparation d'acide para-toluènesulfonique |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1311848A (en) * | 1919-07-29 | Piebre lepers | ||
SU371212A1 (ru) * | 1969-04-03 | 1973-02-22 | Всесоюзная |
-
1976
- 1976-05-13 DE DE2621168A patent/DE2621168C3/de not_active Expired
-
1977
- 1977-05-10 CH CH583977A patent/CH629762A5/de not_active IP Right Cessation
- 1977-05-11 JP JP5326077A patent/JPS52139042A/ja active Granted
- 1977-05-13 GB GB20201/77A patent/GB1573517A/en not_active Expired
- 1977-05-13 FR FR7714686A patent/FR2351097A1/fr active Granted
-
1979
- 1979-12-05 US US06/100,462 patent/US4242275A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1290683A (fr) * | 1961-05-31 | 1962-04-13 | Chemetron Corp | Procédé de préparation d'acide para-toluènesulfonique |
Non-Patent Citations (1)
Title |
---|
CA1971 * |
Also Published As
Publication number | Publication date |
---|---|
JPS6127387B2 (fr) | 1986-06-25 |
JPS52139042A (en) | 1977-11-19 |
DE2621168B2 (de) | 1978-04-06 |
US4242275A (en) | 1980-12-30 |
CH629762A5 (de) | 1982-05-14 |
DE2621168C3 (de) | 1978-11-30 |
DE2621168A1 (de) | 1977-11-17 |
GB1573517A (en) | 1980-08-28 |
FR2351097B1 (fr) | 1983-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |