RO82043B1 - Procedeu de preparare a unor saruri cuaternare de amoniu ale esterilor piridincarboxilici - Google Patents
Procedeu de preparare a unor saruri cuaternare de amoniu ale esterilor piridincarboxiliciInfo
- Publication number
- RO82043B1 RO82043B1 RO106828A RO10682882A RO82043B1 RO 82043 B1 RO82043 B1 RO 82043B1 RO 106828 A RO106828 A RO 106828A RO 10682882 A RO10682882 A RO 10682882A RO 82043 B1 RO82043 B1 RO 82043B1
- Authority
- RO
- Romania
- Prior art keywords
- esters
- general formula
- pyridinecarboxylic
- preparation
- quaternary ammonium
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical class OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title abstract 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 title abstract 2
- 239000002904 solvent Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 239000000376 reactant Substances 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- BTXFQTKOXJFSRM-UHFFFAOYSA-N acetonitrile;1,1,2-trichloroethene Chemical group CC#N.ClC=C(Cl)Cl BTXFQTKOXJFSRM-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- SUSQOBVLVYHIEX-UHFFFAOYSA-N phenylacetonitrile Chemical compound N#CCC1=CC=CC=C1 SUSQOBVLVYHIEX-UHFFFAOYSA-N 0.000 abstract 1
- -1 pyridinecarboxylic acid ester Chemical class 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Landscapes
- Pyridine Compounds (AREA)
Abstract
Inventia se refera la un procedeu de preparare a unor saruri cuaternare de amoniu ale esterilor piridincarboxilici cu formula generala I: (vezi formula) în care R si R1 sunt identici sau diferiti si reprezinta metil sau etil si gruparea COOR din ciclu se afla în pozitia 3 sau 4 din esteri ai acidului piridincarboxilic cu formula generala II: (vezi formula) în care R are semnificatiile de mai sus si esteri ai acidului monohalogenacetic, în prezenta unui solvent, constînd din aceea ca, în scopul obtinerii unor puritati ridicate de 95...98% si a unor randamente de 75...85% se încalzeste la reflux timp de 3...6h esterul acidului piridincarboxilic cu formula generala III: (vezi formula) în care R1 are semnificatiile de mai sus, într-un solvent ales dintre tricloretilena acetonitril si cianura de benzil, raportul molar între reactanti fiind de 1:1...1:3, raportul gravimetric între amestecul de reactanti si sovent fiind de 1:0,5...1:0,75, dupa care din amestecul de reactie se separa sarea cuatrnara, prin metode cunoscute, iar filtratele rezultate din sinteza si spalari continînd materii prime nereactionate si sovent se refolosesc la o noua sinteza.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO82106828A RO82043A2 (ro) | 1982-03-15 | 1982-03-15 | Procedeu de preparare a unor saruri cuaternare de amoniu ale esterilor piridin-carboxilici |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO82106828A RO82043A2 (ro) | 1982-03-15 | 1982-03-15 | Procedeu de preparare a unor saruri cuaternare de amoniu ale esterilor piridin-carboxilici |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO82043B1 true RO82043B1 (ro) | 1983-06-30 |
| RO82043A2 RO82043A2 (ro) | 1983-07-07 |
Family
ID=20111201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO82106828A RO82043A2 (ro) | 1982-03-15 | 1982-03-15 | Procedeu de preparare a unor saruri cuaternare de amoniu ale esterilor piridin-carboxilici |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO82043A2 (ro) |
-
1982
- 1982-03-15 RO RO82106828A patent/RO82043A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO82043A2 (ro) | 1983-07-07 |
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