RO100192B1 - Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 3-fenilen-bis(oxi)?is-acetic - Google Patents
Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 3-fenilen-bis(oxi)?is-aceticInfo
- Publication number
- RO100192B1 RO100192B1 RO135027A RO13502788A RO100192B1 RO 100192 B1 RO100192 B1 RO 100192B1 RO 135027 A RO135027 A RO 135027A RO 13502788 A RO13502788 A RO 13502788A RO 100192 B1 RO100192 B1 RO 100192B1
- Authority
- RO
- Romania
- Prior art keywords
- sub
- bis
- acetic acid
- phenylene
- acid
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title 1
- 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
- -1 2-ethylhexyl Chemical group 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 125000001931 aliphatic group Chemical group 0.000 abstract 2
- 239000003795 chemical substances by application Substances 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
- 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
- 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
- 238000002845 discoloration 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
- 239000000376 reactant Substances 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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Inventia de fata se refera la un procedeu de obtinere a unor diesteri ai acidului 2,2'-[1,3-fenil-bis-(oxi)]-bis - acetic cu formula generala : (vezi formula în pag.1) în care R reprezinta un rest alifatic normal C<sub>4</sub> ... C<sub>8</sub> sau C<sub>10</sub> izoalifatic C<sub>4</sub> - C<sub>6</sub> si C<sub>2 - 6</sub> (2 etil hexil) prin esterificarea 2,2'-!1,3-fenilen-bis-(oxi)]-bis-acetic cu acizii alifatici corespunzatori; se lucreaza în sistem azeotrop, folosind un exces de 20 ... 50 % alcool alifatic normal C<sub>4</sub> ... C<sub>8</sub> sau C<sub>10</sub>, izoalifatic C<sub>4</sub> - C<sub>6</sub> si C<sub>2-6</sub> (2 etil hexil); 0 % catalizator acid ales dintre acid benzen sulfonic, acid p-toluen sulfonic si acid sulfuric fata de reactanti, un antrenant ales dintre benzen, toluen sau xilen în cantitate echivalenta pâna la dubla fata de cantitatea de diacid luata în lucru prin fierbere la reflux timp de 1,5 ... 3 h, dupa care se purifica prin filtrarea suspensiei solide, îndepartare în vacuum a agentului de antrenare si a excesului de alcool, spalari alcaline si cu apa demineralizata, devolatilizare si decolorare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO135027A RO100192B1 (ro) | 1988-09-03 | 1988-09-03 | Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 3-fenilen-bis(oxi)?is-acetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO135027A RO100192B1 (ro) | 1988-09-03 | 1988-09-03 | Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 3-fenilen-bis(oxi)?is-acetic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO100192A2 RO100192A2 (ro) | 1990-10-25 |
| RO100192B1 true RO100192B1 (ro) | 1990-10-30 |
Family
ID=20122409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO135027A RO100192B1 (ro) | 1988-09-03 | 1988-09-03 | Procedeu de obtinere a unor diesteri ai acidului 2, 2' -1, 3-fenilen-bis(oxi)?is-acetic |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO100192B1 (ro) |
-
1988
- 1988-09-03 RO RO135027A patent/RO100192B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO100192A2 (ro) | 1990-10-25 |
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