GB224913A - Improvements in or relating to the manufacture of alkyl resorcinols - Google Patents
Improvements in or relating to the manufacture of alkyl resorcinolsInfo
- Publication number
- GB224913A GB224913A GB27259/24A GB2725924A GB224913A GB 224913 A GB224913 A GB 224913A GB 27259/24 A GB27259/24 A GB 27259/24A GB 2725924 A GB2725924 A GB 2725924A GB 224913 A GB224913 A GB 224913A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pure
- propyl
- purifying
- resorcinol
- butyl
- 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
- C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
- C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
- C07C39/08—Dihydroxy benzenes; Alkylated derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
n-Propyl and n-butyl resorcinols are prepared in a pure state, for use for example therapeutically, by heating resorcinol with pure propionic or pure n-butyric acid in presence of a condensing agent, such as zinc chloride, separating and purifying the intermediate ketone, reducing it, such as by zinc amalgam and hydrochloric acid, and finally purifying the resulting n-propyl or n-butyl resorcinol by vacuum distillation and recrystallization from benzene. The intermediate ketone may be purified by distillation in vacuo. An example shows the preparation of the n-propyl body. The Specification as open to inspection under Sect. 91 (3) (a) is not limited to the use of the pure acids and refers also to other methods of purifying the final alkyl resorcinol. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US224913XA | 1923-07-31 | 1923-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB224913A true GB224913A (en) | 1925-04-28 |
Family
ID=21809876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27259/24A Expired GB224913A (en) | 1923-07-31 | 1923-11-28 | Improvements in or relating to the manufacture of alkyl resorcinols |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB224913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325479A (en) * | 1989-05-08 | 1994-06-28 | Apple Computer, Inc. | Method and apparatus for moving control points in displaying digital typeface on raster output devices |
-
1923
- 1923-11-28 GB GB27259/24A patent/GB224913A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325479A (en) * | 1989-05-08 | 1994-06-28 | Apple Computer, Inc. | Method and apparatus for moving control points in displaying digital typeface on raster output devices |
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