JPS54132583A - Preparation of 3-isoquinolone derivative - Google Patents
Preparation of 3-isoquinolone derivativeInfo
- Publication number
- JPS54132583A JPS54132583A JP3997078A JP3997078A JPS54132583A JP S54132583 A JPS54132583 A JP S54132583A JP 3997078 A JP3997078 A JP 3997078A JP 3997078 A JP3997078 A JP 3997078A JP S54132583 A JPS54132583 A JP S54132583A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- lower alkyl
- ring
- sulfuric acid
- preparation
- 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: To prepare the title compound useful as an intermediate of medicines such as psychotropic agent, etc., in a single step, by the ring-closing reaction of a novel benzyl acetamide compound in the presence of a condensing agent such as sulfuric acid, etc.
CONSTITUTION: The ring-closure of a benzyl acetamide compound of formula I (R1,2 are H, lower alkyl, lower alkoxyl, halogen; R3 is H, lower alkyl, aralkyl; R4 is lower alkyl) in the presence or absence of solvent such as benzene, CHC13, etc., in the presence of a condensing agent such as sulfuric acid, phosphoric acid, etc., affords the objective 3-iosquinolone compound II.
EFFECT: 6- or 8-substituted compound can be separated in high yield.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997078A JPS54132583A (en) | 1978-04-05 | 1978-04-05 | Preparation of 3-isoquinolone derivative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997078A JPS54132583A (en) | 1978-04-05 | 1978-04-05 | Preparation of 3-isoquinolone derivative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54132583A true JPS54132583A (en) | 1979-10-15 |
Family
ID=12567803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3997078A Pending JPS54132583A (en) | 1978-04-05 | 1978-04-05 | Preparation of 3-isoquinolone derivative |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54132583A (en) |
-
1978
- 1978-04-05 JP JP3997078A patent/JPS54132583A/en active Pending
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