JPS5731649A - Preparation of hydrazone derivative - Google Patents
Preparation of hydrazone derivativeInfo
- Publication number
- JPS5731649A JPS5731649A JP10472980A JP10472980A JPS5731649A JP S5731649 A JPS5731649 A JP S5731649A JP 10472980 A JP10472980 A JP 10472980A JP 10472980 A JP10472980 A JP 10472980A JP S5731649 A JPS5731649 A JP S5731649A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- hydrazone derivative
- preparation
- hydrazine
- aldehyde
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as an intermediate of pharmaceuticals, in high yield and purity, remarkably suppressing the side reactions, by reacting an aldehyde with a hydrazine in an aqueous medium maintaining the pH of the reaction system within a specific range.
CONSTITUTION: The hydrazone derivative of formula I is prepared by reacting an aldehyde of formula X-CH2CHO (X is halogen) with a hydrazine of formula H2N- NH-COR (R is lower alkoxy) in an aqueous medium at -10W+50°C maintaining the pH of the reaction system within the range 3.5W5.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10472980A JPS5731649A (en) | 1980-07-30 | 1980-07-30 | Preparation of hydrazone derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10472980A JPS5731649A (en) | 1980-07-30 | 1980-07-30 | Preparation of hydrazone derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5731649A true JPS5731649A (en) | 1982-02-20 |
Family
ID=14388579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10472980A Pending JPS5731649A (en) | 1980-07-30 | 1980-07-30 | Preparation of hydrazone derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731649A (en) |
-
1980
- 1980-07-30 JP JP10472980A patent/JPS5731649A/en active Pending
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