GB1148975A - Dihydroxy diphenyl sulfone and its preparation - Google Patents
Dihydroxy diphenyl sulfone and its preparationInfo
- Publication number
- GB1148975A GB1148975A GB1794767A GB1794767A GB1148975A GB 1148975 A GB1148975 A GB 1148975A GB 1794767 A GB1794767 A GB 1794767A GB 1794767 A GB1794767 A GB 1794767A GB 1148975 A GB1148975 A GB 1148975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction mixture
- preparation
- diphenyl sulfone
- dihydroxy diphenyl
- dihydroxydiphenyl sulphone
- 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
- C07C315/00—Preparation of sulfones; Preparation of sulfoxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,148,975. Dihydroxydiphenyl sulphone. WITCO CHEMICAL CO. Inc. 19 April, 1967, No. 17947/67. Heading C2C. A process for producing dihydroxydiphenyl sulphone comprises initially reacting substantially stoichiometric proportions of phenol and concentrated or fuming sulphuric acid at a temperature of from 130‹ to 170‹ C. under conditions of agitation, then adding benzene in small increments to the reaction mixture at a rate to maintain the reaction mixture within the aforesaid temperature range, removing the water formed during the reaction by azeotropic distillation and recovering the dihydroxydiphenylsulphone from the reaction mixture. An example is furnished.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1794767A GB1148975A (en) | 1967-04-19 | 1967-04-19 | Dihydroxy diphenyl sulfone and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1794767A GB1148975A (en) | 1967-04-19 | 1967-04-19 | Dihydroxy diphenyl sulfone and its preparation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1148975A true GB1148975A (en) | 1969-04-16 |
Family
ID=10104028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1794767A Expired GB1148975A (en) | 1967-04-19 | 1967-04-19 | Dihydroxy diphenyl sulfone and its preparation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1148975A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5072049A (en) * | 1989-02-01 | 1991-12-10 | Basf Aktiengesellschaft | Process for the preparation of bis(4-hydroxyphenyl) sulfone |
-
1967
- 1967-04-19 GB GB1794767A patent/GB1148975A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5072049A (en) * | 1989-02-01 | 1991-12-10 | Basf Aktiengesellschaft | Process for the preparation of bis(4-hydroxyphenyl) sulfone |
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