GB1392962A - Toluates and their oxidation - Google Patents
Toluates and their oxidationInfo
- Publication number
- GB1392962A GB1392962A GB3079672A GB3079672A GB1392962A GB 1392962 A GB1392962 A GB 1392962A GB 3079672 A GB3079672 A GB 3079672A GB 3079672 A GB3079672 A GB 3079672A GB 1392962 A GB1392962 A GB 1392962A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acyloxyethyl
- esterifying
- acid
- ethylene glycol
- toluates
- 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
- C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
- C07C69/80—Phthalic acid esters
- C07C69/82—Terephthalic acid esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/39—Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/76—Esters of carboxylic acids having a carboxyl 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)
- Polyesters Or Polycarbonates (AREA)
Abstract
1392962 Toluates and their oxidation HALCON INTERNATIONAL Inc 30 June 1972 [1 July 1971] 30796/72 Heading C2C The invention comprises #-acyloxyethyl-ptoluate in which the 'Acyl' group represents formyl, acetyl or propionyl. These compounds may be prepared either by esterifying toluic acid with ethylene glycol and esterifying the resultant compound with the appropriate aliphatic acid; or by the acidolysis of p-toluic acid with an appropriate ethylene glycol diacylate. The invention also relates to a method for the preparation of a precursor for polyethylene terephthate containing mono- or bis-(#-acyloxyethyl) terephthalate and terephthalic acid comprising oxidizing the compounds according to the invention in the liquid phase with molecular oxygen.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15875671A | 1971-07-01 | 1971-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1392962A true GB1392962A (en) | 1975-05-07 |
Family
ID=22569567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3079672A Expired GB1392962A (en) | 1971-07-01 | 1972-06-30 | Toluates and their oxidation |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5146102B1 (en) |
BE (1) | BE785486A (en) |
FR (1) | FR2143910B1 (en) |
GB (1) | GB1392962A (en) |
IT (1) | IT958647B (en) |
NL (1) | NL7209252A (en) |
-
1972
- 1972-06-27 BE BE785486A patent/BE785486A/en unknown
- 1972-06-30 FR FR7223677A patent/FR2143910B1/fr not_active Expired
- 1972-06-30 IT IT5124972A patent/IT958647B/en active
- 1972-06-30 JP JP6622072A patent/JPS5146102B1/ja active Pending
- 1972-06-30 GB GB3079672A patent/GB1392962A/en not_active Expired
- 1972-06-30 NL NL7209252A patent/NL7209252A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE785486A (en) | 1972-12-27 |
DE2264906B2 (en) | 1976-07-08 |
IT958647B (en) | 1973-10-30 |
FR2143910B1 (en) | 1976-10-29 |
DE2264906A1 (en) | 1975-06-19 |
DE2232644B2 (en) | 1976-07-29 |
JPS5146102B1 (en) | 1976-12-07 |
DE2232644A1 (en) | 1973-01-11 |
NL7209252A (en) | 1973-01-03 |
FR2143910A1 (en) | 1973-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |