GB557976A - Improvements in or relating to the manufacture of diphenylolpropane - Google Patents
Improvements in or relating to the manufacture of diphenylolpropaneInfo
- Publication number
- GB557976A GB557976A GB770242A GB770242A GB557976A GB 557976 A GB557976 A GB 557976A GB 770242 A GB770242 A GB 770242A GB 770242 A GB770242 A GB 770242A GB 557976 A GB557976 A GB 557976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diphenylolpropane
- relating
- manufacture
- diphenyolpropane
- pritchard
- 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
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
557,976. Diphenyolpropane. DISTILLERS CO., Ltd., STANLEY, H. M., MORGAN, J. D., and PRITCHARD, W. L. June 5, 1942, No. 7702. [Class 2 (iii)] Diphenylolpropane is made by condensing phenol and acetone in presence of sulphuric acid and of a halogenated hydrocarbon such as carbon tetrachloride, chloroform, dichloroethylene, ethylidene dibromide or chlorobenzene. The temperature may be maintained initially below 20‹ C. and afterwards allowed to rise to 40‹ C. Specifications 395,732 and 428,944 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB770242A GB557976A (en) | 1942-06-05 | 1942-06-05 | Improvements in or relating to the manufacture of diphenylolpropane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB770242A GB557976A (en) | 1942-06-05 | 1942-06-05 | Improvements in or relating to the manufacture of diphenylolpropane |
Publications (1)
Publication Number | Publication Date |
---|---|
GB557976A true GB557976A (en) | 1943-12-14 |
Family
ID=9838140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB770242A Expired GB557976A (en) | 1942-06-05 | 1942-06-05 | Improvements in or relating to the manufacture of diphenylolpropane |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB557976A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2812365A (en) * | 1954-03-18 | 1957-11-05 | Givaudan Corp | Process of preparing bis-(3, 5, 6-trichloro-2-hydroxyphenyl) methane |
US3535389A (en) * | 1960-02-12 | 1970-10-20 | Koninkl Zwavelzuurfabrieken V | Processes for obtaining substantially pure 4,4' - dihydroxy - diphenyl-propane-2,2 |
-
1942
- 1942-06-05 GB GB770242A patent/GB557976A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2812365A (en) * | 1954-03-18 | 1957-11-05 | Givaudan Corp | Process of preparing bis-(3, 5, 6-trichloro-2-hydroxyphenyl) methane |
US3535389A (en) * | 1960-02-12 | 1970-10-20 | Koninkl Zwavelzuurfabrieken V | Processes for obtaining substantially pure 4,4' - dihydroxy - diphenyl-propane-2,2 |
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