GB804859A - Improvements in or relating to the production of glycol monoethers - Google Patents
Improvements in or relating to the production of glycol monoethersInfo
- Publication number
- GB804859A GB804859A GB29972/57A GB2997257A GB804859A GB 804859 A GB804859 A GB 804859A GB 29972/57 A GB29972/57 A GB 29972/57A GB 2997257 A GB2997257 A GB 2997257A GB 804859 A GB804859 A GB 804859A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ether
- heptanal
- methyl
- prepared
- magnesium
- 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
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
- C07C43/04—Saturated ethers
- C07C43/10—Saturated ethers of polyhydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Monoalkylethers of secondary-secondary and secondary - tertiary glycols of the general formula: <FORM:0804859/IV (b)/1> in which R is a saturated or unsaturated aliphatic, aromatic, cycloaliphatic or heterocyclic group, R1 is a hydrogen atom or a saturated or unsaturated aliphatic, aromatic, cycloaliphatic or heterocyclic group, or R and R1 form a ring with the carbon atom to which they are attached, and R2 and R3 are alkyl groups are prepared by condensing an a -chloralkyl ether R2-CHCl-O-R3 with an aldehyde or ketone R-CO-R1 in the presence of magnesium and subjecting the magnesium compound thus obtained to hydrolysis, e.g. with ice/NH4Cl. The products are transformed by the action of acids into ketones. The condensation is preferably carried out in a cyclic ether such as tetrahydrofuran, tetrahydropyran or their homologues. The magnesium may be activated by mercuric chloride. In examples: 3 - methyl - 2 - ethoxy - 3 - octanol is prepared from a -chloroethylethyl ether and 2-heptanone, and converted to 3-methyl-2-octanone by the action of formic acid; glycol monoethyl ethers are also prepared by the reaction of a -chloro-ethylethyl ether with heptanal, benzaldehyde, isopropylbenzaldehyde, acrolein, crotonal; isobutyl methyl ketone, amyl methyl ketone and cyclohexanone; a -chloropropylethyl ether with heptanal, acrolein, crotonal, benzaldehyde, acetone and isobutyl-methyl ketone; a -chlorobutylethyl ether with heptanal; and a -chloroisobutylethyl ether with heptanal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR804859X | 1956-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB804859A true GB804859A (en) | 1958-11-26 |
Family
ID=9250971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29972/57A Expired GB804859A (en) | 1956-11-27 | 1957-09-24 | Improvements in or relating to the production of glycol monoethers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB804859A (en) |
-
1957
- 1957-09-24 GB GB29972/57A patent/GB804859A/en not_active Expired
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