GB289544A - Improvements in and relating to the production of dyestuff intermediates - Google Patents
Improvements in and relating to the production of dyestuff intermediatesInfo
- Publication number
- GB289544A GB289544A GB256527A GB256527A GB289544A GB 289544 A GB289544 A GB 289544A GB 256527 A GB256527 A GB 256527A GB 256527 A GB256527 A GB 256527A GB 289544 A GB289544 A GB 289544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- production
- naphthylketone
- alkaline
- phenyl
- 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
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
289,544. Drescher, H. A. E., Thomas, J., and Scottish Dyes, Ltd. Jan. 28, 1927. Phenyl-a-naphthylketone is prepared by heating an alkaline-earth salt of a-naphthoylo-benzoic acid, preferably in the presence of an oxide or hydroxide of an alkaline-earth metal. In an example, calcium alpha-naphthoyl-o-benzoate is heated in the presence of calcium hydroxide under reduced pressure, when phenyl-alpha-naphthylketone distils over.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB256527A GB289544A (en) | 1927-01-28 | 1927-01-28 | Improvements in and relating to the production of dyestuff intermediates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB256527A GB289544A (en) | 1927-01-28 | 1927-01-28 | Improvements in and relating to the production of dyestuff intermediates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB289544A true GB289544A (en) | 1928-04-30 |
Family
ID=9741804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB256527A Expired GB289544A (en) | 1927-01-28 | 1927-01-28 | Improvements in and relating to the production of dyestuff intermediates |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB289544A (en) |
-
1927
- 1927-01-28 GB GB256527A patent/GB289544A/en not_active Expired
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