GB933029A - Process for the manufacture of trimethyl phosphites - Google Patents
Process for the manufacture of trimethyl phosphitesInfo
- Publication number
- GB933029A GB933029A GB3807858A GB3807858A GB933029A GB 933029 A GB933029 A GB 933029A GB 3807858 A GB3807858 A GB 3807858A GB 3807858 A GB3807858 A GB 3807858A GB 933029 A GB933029 A GB 933029A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methanol
- distillation
- phosphite
- reaction
- trimethyl phosphite
- 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
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical class COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 15
- 238000004821 distillation Methods 0.000 abstract 5
- 238000006243 chemical reaction Methods 0.000 abstract 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 abstract 2
- 238000005809 transesterification reaction Methods 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- -1 alkali metal alkoxide Chemical class 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000032050 esterification Effects 0.000 abstract 1
- 238000005886 esterification reaction Methods 0.000 abstract 1
- 238000006317 isomerization reaction Methods 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/141—Esters of phosphorous acids
- C07F9/142—Esters of phosphorous acids with hydroxyalkyl compounds without further substituents on alkyl
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Trimethyl phosphite is prepared by transesterifying a triaryl phosphite with at least a 70% excess over the stoichiometric amount of methanol at a temperature low enough to avoid substantially any concurrent isomerisation reaction and below the boiling point in the reaction conditions of the triaryl phosphite and the phenol produced, and removing the formed trimethyl phosphite by distillation with methanol from the reaction mixture. The reaction temperature may be between 0 and 100 DEG C. The transesterification may take place partly during the distillation and some or all of the excess of methanol may be introduced countercurrent to the feed in this distillation stage which may be effected in a film still. An esterification catalyst may be used, e.g. an alkali metal alkoxide or phenoxide. The trimethyl phosphite may be separated from the methanol by distillation. It is advantageous to maintain alkaline conditions during the distillations. The Provisional Specification covers also the use of alkanols other than methanol in the transesterification. Reference has been directed by the Comptroller to Specification 873,495.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3807858A GB933029A (en) | 1958-11-26 | 1958-11-26 | Process for the manufacture of trimethyl phosphites |
| FR811191A FR1241523A (en) | 1958-11-26 | 1959-11-25 | Process for the production of trimethyl phosphite |
| DEA33375A DE1140562B (en) | 1958-11-26 | 1959-11-26 | Process for the production of trimethyl phosphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3807858A GB933029A (en) | 1958-11-26 | 1958-11-26 | Process for the manufacture of trimethyl phosphites |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB933029A true GB933029A (en) | 1963-07-31 |
Family
ID=10401024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3807858A Expired GB933029A (en) | 1958-11-26 | 1958-11-26 | Process for the manufacture of trimethyl phosphites |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1140562B (en) |
| FR (1) | FR1241523A (en) |
| GB (1) | GB933029A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL272868A (en) * | 1960-12-23 | |||
| NL129650C (en) * | 1963-05-31 |
-
1958
- 1958-11-26 GB GB3807858A patent/GB933029A/en not_active Expired
-
1959
- 1959-11-25 FR FR811191A patent/FR1241523A/en not_active Expired
- 1959-11-26 DE DEA33375A patent/DE1140562B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1140562B (en) | 1962-12-06 |
| FR1241523A (en) | 1960-09-16 |
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