RO100193B1 - Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 2-fenilen-bis-(oxi)?is-acetic - Google Patents
Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 2-fenilen-bis-(oxi)?is-aceticInfo
- Publication number
- RO100193B1 RO100193B1 RO135028A RO13502888A RO100193B1 RO 100193 B1 RO100193 B1 RO 100193B1 RO 135028 A RO135028 A RO 135028A RO 13502888 A RO13502888 A RO 13502888A RO 100193 B1 RO100193 B1 RO 100193B1
- Authority
- RO
- Romania
- Prior art keywords
- sub
- bis
- phenylene
- acetic acid
- acid
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title 3
- 238000004519 manufacturing process Methods 0.000 title 1
- -1 2-ethylhexyl Chemical group 0.000 abstract 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 abstract 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 abstract 1
- PPZYHOQWRAUWAY-UHFFFAOYSA-N 2-[2-(carboxymethoxy)phenoxy]acetic acid Chemical compound OC(=O)COC1=CC=CC=C1OCC(O)=O PPZYHOQWRAUWAY-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000003377 acid catalyst Substances 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 abstract 1
- 229940092714 benzenesulfonic acid Drugs 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000002845 discoloration Methods 0.000 abstract 1
- 230000032050 esterification Effects 0.000 abstract 1
- 238000005886 esterification reaction Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia de fata se refera la un procedeu de obtinere a unor diesteri ai acidului 2,2'-[1,2-fenilen-bis-(oxi)-bis-acetic, cu formula generala I : (vezi formula în pag.1), în care R reprezinta un rest alifatic normal C<sub>4</sub> - C<sub>8</sub>, C<sub>10</sub>, respectiv un rest izoalifatic C<sub>4</sub> - C<sub>6</sub> si C<sub>2</sub> - C<sub>6</sub> (2-etil-hexil), prin esterificarea acidului 2,2'-(1,2-fenilen-bis-(oxi)]bis-acetic cu alcooli alifatici superiori corespunzatori, conform careia se lucreaza în sistem azeotrop, folosind un exces 20 ... 50 % alcool alifatic normal C<sub>4</sub> - C<sub>8</sub>, C<sub>10</sub>, respectiv rest izoalifatic C<sub>4</sub> - C<sub>6</sub> si C<sub>2 - 6</sub> (2-etil-hexil) 1 ... 3 % catalizator acid, ales dintre acid benzen sulfonic, p-toluen sulfonic sau sulfuric, un antrenament, ales dintre benzen, toluen sau xilen în cantitate echivalenta la dubla fata de cantitatea de diacid luata în lucru prin fierbere la reflux, timp de 1,5 ... 3 h, dupa care se purifica printr-o succesiune de faze constând în filtrarea suspensiei solide, îndepartarea în vacuum a agentului de antrenare si excesului de alcool, spalari alcaline si cu apa demineralizata, devolatilizare si decolorare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO135028A RO100193B1 (ro) | 1988-09-03 | 1988-09-03 | Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 2-fenilen-bis-(oxi)?is-acetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO135028A RO100193B1 (ro) | 1988-09-03 | 1988-09-03 | Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 2-fenilen-bis-(oxi)?is-acetic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO100193A2 RO100193A2 (ro) | 1990-07-24 |
| RO100193B1 true RO100193B1 (ro) | 1990-07-30 |
Family
ID=20122410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO135028A RO100193B1 (ro) | 1988-09-03 | 1988-09-03 | Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 2-fenilen-bis-(oxi)?is-acetic |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO100193B1 (ro) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19904207A1 (de) * | 1999-02-03 | 2000-08-10 | Basf Ag | Verfahren zur Herstellung von Estern |
-
1988
- 1988-09-03 RO RO135028A patent/RO100193B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO100193A2 (ro) | 1990-07-24 |
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