GB1253425A - A process for the production of a halogen-substituted aromatic mercapto compounds - Google Patents
A process for the production of a halogen-substituted aromatic mercapto compoundsInfo
- Publication number
- GB1253425A GB1253425A GB1807769A GB1807769A GB1253425A GB 1253425 A GB1253425 A GB 1253425A GB 1807769 A GB1807769 A GB 1807769A GB 1807769 A GB1807769 A GB 1807769A GB 1253425 A GB1253425 A GB 1253425A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reduction
- production
- disulphide
- dichloro
- chloro
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1,253,425. Halogenated aromatic mercaptans. FARBENFABRIKEN BAYER A.G. 9 April, 1969 [11 May, 1968], No. 18077/69. Heading C2C. A process for the production of a halogensubstituted aromatic mercapto compound comprises reacting a disulphide of the formula in which X represents a halogen atom, R represents a substituent that is stable under the reaction conditions n is 1, 2 or 3 and b is 1 or 2, under pressure with hydrogen at temperatures of from 60‹ C. to 250‹ C. in the presence of a catalyst comprising, Raney nickel, Raney cobalt, ruthenium, rhodium, palladium, osmium, iridium, platinum or the sulphides or polysulphides of these metals; the reduction being carried out in an inert diluent or on the molten disulphide the reduction being continued in the presence of the mercapto compound formed during reduction. Examples disclose the preparation of 4-chloro-; 4-bromo-; 2,5-dichloro-; 4,6-dichloro-3-methyl-; 2,4,6- trichloro-3-hydroxy and 4-chloro-2-amino-thiophenol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681768421 DE1768421A1 (en) | 1968-05-11 | 1968-05-11 | Process for the preparation of halogen-substituted aromatic mercapto compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1253425A true GB1253425A (en) | 1971-11-10 |
Family
ID=5699740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1807769A Expired GB1253425A (en) | 1968-05-11 | 1969-04-09 | A process for the production of a halogen-substituted aromatic mercapto compounds |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT289763B (en) |
| BE (1) | BE732760A (en) |
| CH (1) | CH509994A (en) |
| DE (1) | DE1768421A1 (en) |
| FR (1) | FR2008330A1 (en) |
| GB (1) | GB1253425A (en) |
| NL (1) | NL6906280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6271415B1 (en) | 1997-10-22 | 2001-08-07 | Bayer Aktiengesellschaft | S-(4-biphenyl)-thiosulphuric acids and their salts, method for producing the same and method for producing 4-mercaptobiphenyls |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1286830B (en) * | 1964-10-07 | 1969-01-09 | Gabona Troeszt Ki | Compensating coupling |
| DE1258673B (en) * | 1965-09-11 | 1968-01-11 | Bbc Brown Boveri & Cie | Universal joint coupling |
| JPS57171960A (en) * | 1981-04-17 | 1982-10-22 | Nippon Kayaku Co Ltd | Preparation of thiophenol compound |
| EP0134200B1 (en) * | 1983-08-12 | 1987-03-04 | Ciba-Geigy Ag | Process for the preparation of mercaptans |
| DE19746512A1 (en) * | 1997-10-22 | 1999-04-29 | Bayer Ag | Preparation of arylmercaptan derivatives |
-
1968
- 1968-05-11 DE DE19681768421 patent/DE1768421A1/en active Pending
-
1969
- 1969-04-01 CH CH495969A patent/CH509994A/en not_active IP Right Cessation
- 1969-04-04 AT AT335569A patent/AT289763B/en not_active IP Right Cessation
- 1969-04-09 GB GB1807769A patent/GB1253425A/en not_active Expired
- 1969-04-23 NL NL6906280A patent/NL6906280A/xx unknown
- 1969-05-08 BE BE732760D patent/BE732760A/xx unknown
- 1969-05-09 FR FR6915121A patent/FR2008330A1/fr not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6271415B1 (en) | 1997-10-22 | 2001-08-07 | Bayer Aktiengesellschaft | S-(4-biphenyl)-thiosulphuric acids and their salts, method for producing the same and method for producing 4-mercaptobiphenyls |
Also Published As
| Publication number | Publication date |
|---|---|
| AT289763B (en) | 1971-05-10 |
| FR2008330A1 (en) | 1970-01-16 |
| BE732760A (en) | 1969-11-10 |
| DE1768421A1 (en) | 1971-10-07 |
| NL6906280A (en) | 1969-11-13 |
| CH509994A (en) | 1971-07-15 |
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