GB1272699A - Selective monochlorination of biphenyl using clay catalysts - Google Patents
Selective monochlorination of biphenyl using clay catalystsInfo
- Publication number
- GB1272699A GB1272699A GB5511870A GB5511870A GB1272699A GB 1272699 A GB1272699 A GB 1272699A GB 5511870 A GB5511870 A GB 5511870A GB 5511870 A GB5511870 A GB 5511870A GB 1272699 A GB1272699 A GB 1272699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- biphenyl
- clay catalysts
- monochlorination
- selective
- nov
- 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
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 title abstract 4
- 235000010290 biphenyl Nutrition 0.000 title abstract 3
- 239000004305 biphenyl Substances 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 title abstract 2
- 239000004927 clay Substances 0.000 title abstract 2
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical group ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 abstract 1
- 150000004074 biphenyls Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
- C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds
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)
- Catalysts (AREA)
Abstract
1,272,699. Monochlorobiphenyls. DOW CHEMICAL CO. 19 Nov., 1970 [19 Nov., 1969], No. 55118/70. Heading C2C. A mixture of 2- and 4-chlorobiphenyls is prepared by reacting biphenyl with Cl 2 in presence of a clay catalyst. In examples, the product contains additionally up to 1% 3-chlorobiphenyl and up to 12% higher chlorinated (mainly dichloro-) biphenyls.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87818269A | 1969-11-19 | 1969-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1272699A true GB1272699A (en) | 1972-05-03 |
Family
ID=25371533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5511870A Expired GB1272699A (en) | 1969-11-19 | 1970-11-19 | Selective monochlorination of biphenyl using clay catalysts |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE759148A (en) |
| CA (1) | CA933949A (en) |
| DE (1) | DE2056441A1 (en) |
| FR (1) | FR2067384B1 (en) |
| GB (1) | GB1272699A (en) |
| NL (1) | NL7016892A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3930848A1 (en) * | 1989-09-15 | 1991-03-28 | Bayer Ag | METHOD FOR THE PRODUCTION OF OLIGOPHENYLENE DIHALOGENATED IN THE 4,4'-POSITION |
| DE19922402A1 (en) * | 1999-05-14 | 2000-11-16 | Bayer Ag | Preparation of pure 4-chlorobiphenyl by reacting biphenyl and chlorine in presence of catalyst then fractionally distilling, useful as intermediate for pharmaceuticals and plant protectants |
-
0
- BE BE759148D patent/BE759148A/en unknown
-
1970
- 1970-11-05 CA CA097503A patent/CA933949A/en not_active Expired
- 1970-11-17 DE DE19702056441 patent/DE2056441A1/de active Pending
- 1970-11-18 NL NL7016892A patent/NL7016892A/xx unknown
- 1970-11-19 FR FR7041515A patent/FR2067384B1/fr not_active Expired
- 1970-11-19 GB GB5511870A patent/GB1272699A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7016892A (en) | 1971-05-24 |
| CA933949A (en) | 1973-09-18 |
| FR2067384A1 (en) | 1971-08-20 |
| DE2056441A1 (en) | 1971-05-27 |
| FR2067384B1 (en) | 1974-02-15 |
| BE759148A (en) | 1971-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |