GB711680A - Esters of 4-chloro-o-toloxyacetic acid - Google Patents
Esters of 4-chloro-o-toloxyacetic acidInfo
- Publication number
- GB711680A GB711680A GB19185/52A GB1918552A GB711680A GB 711680 A GB711680 A GB 711680A GB 19185/52 A GB19185/52 A GB 19185/52A GB 1918552 A GB1918552 A GB 1918552A GB 711680 A GB711680 A GB 711680A
- Authority
- GB
- United Kingdom
- Prior art keywords
- propoxy
- propyl
- chloro
- butoxy
- acid
- 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
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
- C07C69/708—Ethers
- C07C69/712—Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of 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 esters of 4-chloro-o-toloxyacetic acid of general formula <FORM:0711680/IV (b)/1> wherein n is an integer not greater than 3, and R represents an alkyl or phenyl group, and their preparation by reacting a molecular proportion of 4-chloro-o-toloxyacetic acid with at least a molecular proportion of a mono-etherified propylene glycol of the general formula HO-[-C2H3(CH3)-O-]n.R wherein n and R are as defined above, in the presence of an esterification catalyst. In examples: (1) 4-chloro-o-toloxyacetic acid, an isomeric mixture of iso-propoxy-propoxy-propanol (chiefly (CH3)2.CH.[-O.CH2.CH(CH3)]2. OH), in ethylene dichloride with concentrated sulphuric acid as catalyst is heated, with continuous distillation of solvent and water, the ethylene dichloride being recycled. After neutralization and removal of solvent iso-propoxy - propoxy - propyl 4 - chloro - o-toloxyacetate is obtained on distillation. In other examples a methoxy-propoxy-propoxy-propyl-; 11-methoxy-21-propyl-; a butoxy-propoxy-propyl-; a phenoxy-propoxy-propyl-; 11 - butoxy - 21 - propyl-; 11 - phenoxy - 21-propyl-; a butoxy-propoxy-propoxy-propyl-; and a mixture of 11-butoxy-21-propyl-, butoxy-propoxy-propyl- and butoxy-propoxy-propoxy-propyl - 4 - chloro - o - toloxy - phenoxy-acetates are described. The mono-, di- and tri-propylene glycol mono-ethers required as starting materials are prepared by the reaction of propylene oxide with a monohydric alcohol or phenol in presence of a catalyst. The mixed reaction product may be employed directly or resolved into the individual components.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US711680XA | 1951-09-18 | 1951-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB711680A true GB711680A (en) | 1954-07-07 |
Family
ID=22099698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19185/52A Expired GB711680A (en) | 1951-09-18 | 1952-07-29 | Esters of 4-chloro-o-toloxyacetic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB711680A (en) |
-
1952
- 1952-07-29 GB GB19185/52A patent/GB711680A/en not_active Expired
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