GB785389A - Aralkyl carbinols and process for their preparation - Google Patents
Aralkyl carbinols and process for their preparationInfo
- Publication number
- GB785389A GB785389A GB25082/55A GB2508255A GB785389A GB 785389 A GB785389 A GB 785389A GB 25082/55 A GB25082/55 A GB 25082/55A GB 2508255 A GB2508255 A GB 2508255A GB 785389 A GB785389 A GB 785389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonyl group
- carbinols
- catalyst
- alkaline catalyst
- preparation
- 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
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises substituted aralkyl carbinols of the general formula <FORM:0785389/IV (a)/1> wherein R represents a carbonyl group (-CO-) or a hydrogenated carbonyl group (-HCOH-), and the preparation thereof by condensing a ,a -dichloroacetophenone with formaldehyde in the presence of an alkaline catalyst at a temperature between 0 DEG and 40 DEG C. to form the compound in which R is the carbonyl group, and when required, reacting this product with a low-boiling aliphatic secondary alcohol to form the compound in which R represents the hydrogenated carbonyl group. The alkaline catalyst may be an alkali metal hydroxide, an alkaline earth metal hydroxide or a tertiary amine. The alkaline catalyst is preferably employed in an amount between 1 and 3 per cent by weight of the reactants. The reaction with the low-boiling aliphatic secondary alcohol, e.g. isopropanol, is preferably carried out in the presence of aluminium alcoholate as catalyst, e.g. aluminium isopropoxide. In the examples 2-benzoyl-2,3-dichloroethanol and 3-phenyl-2,2-dichloropropane diol are prepared. Esters of the carbinols of the above general formula are mentioned.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US785389XA | 1954-09-30 | 1954-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB785389A true GB785389A (en) | 1957-10-30 |
Family
ID=22144676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25082/55A Expired GB785389A (en) | 1954-09-30 | 1955-09-01 | Aralkyl carbinols and process for their preparation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB785389A (en) |
-
1955
- 1955-09-01 GB GB25082/55A patent/GB785389A/en not_active Expired
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