JPS5636459A - Separation of isoquinoline - Google Patents
Separation of isoquinolineInfo
- Publication number
- JPS5636459A JPS5636459A JP11166679A JP11166679A JPS5636459A JP S5636459 A JPS5636459 A JP S5636459A JP 11166679 A JP11166679 A JP 11166679A JP 11166679 A JP11166679 A JP 11166679A JP S5636459 A JPS5636459 A JP S5636459A
- Authority
- JP
- Japan
- Prior art keywords
- isoquinoline
- quarternary
- quinoline base
- base mixture
- coal tar
- 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.)
- Pending
Links
Landscapes
- Other In-Based Heterocyclic Compounds (AREA)
Abstract
PURPOSE: A kind of alkyl halide is used to form selectively the quarternary salt of isoquinoline from isoquinoline in a quinoline base mixture and the product is used as an anticorrosive agent directly or is decomposed to give isoquinoline.
CONSTITUTION: A quinoline base mixture such as a fraction boiling at 240W250°C which has been separated from coal tar is combined with an alkyl halide of the formula: RX (R is 1W20C substituted or unsubstituted alkyl; X is Cl, Br or I) such as lauryl chloride in an amount of 0.8W1.5 times the molar quantity of the isoquinoline in the base mixture and the reaction is effected at 100W250, preferably 100W200°C to form a quarternary alkylated compound of isoquinoline. The reaction mixture is cooled and stood to conduct the layer separation for isolation of the quarternary salt. When the fraction boiling at 240W250°C from coal tar is employed, the unreacted quinoline base is almost composed of methylquinoline, which is used as a raw material for quinophthalone pigments.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11166679A JPS5636459A (en) | 1979-09-03 | 1979-09-03 | Separation of isoquinoline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11166679A JPS5636459A (en) | 1979-09-03 | 1979-09-03 | Separation of isoquinoline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5636459A true JPS5636459A (en) | 1981-04-09 |
Family
ID=14567096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11166679A Pending JPS5636459A (en) | 1979-09-03 | 1979-09-03 | Separation of isoquinoline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5636459A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237193A (en) * | 1985-04-13 | 1986-10-22 | シャープ株式会社 | Window acounting machine |
| CN107382850A (en) * | 2017-09-25 | 2017-11-24 | 贾海亮 | A kind of 2 methylquinoline and its isomer and the separation method of isoquinolin |
-
1979
- 1979-09-03 JP JP11166679A patent/JPS5636459A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237193A (en) * | 1985-04-13 | 1986-10-22 | シャープ株式会社 | Window acounting machine |
| CN107382850A (en) * | 2017-09-25 | 2017-11-24 | 贾海亮 | A kind of 2 methylquinoline and its isomer and the separation method of isoquinolin |
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