JPS5716848A - Alkyl o-alpha-halogen-substituted acetoacetamidobenzoate and its preparation - Google Patents
Alkyl o-alpha-halogen-substituted acetoacetamidobenzoate and its preparationInfo
- Publication number
- JPS5716848A JPS5716848A JP9083580A JP9083580A JPS5716848A JP S5716848 A JPS5716848 A JP S5716848A JP 9083580 A JP9083580 A JP 9083580A JP 9083580 A JP9083580 A JP 9083580A JP S5716848 A JPS5716848 A JP S5716848A
- Authority
- JP
- Japan
- Prior art keywords
- alkyl
- acetoacetamidobenzoate
- alpha
- halogen
- substituted
- 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
NEW MATERIAL:A compound of formula I (X1 is H; X2 is Cl or Br; or both X1 and X2 are Br; R is alkyl).
EXAMPLE: Methyl o-α-dibromoacetoacetamidobenzoate.
USE: Synthetic intermediate of various chemicals. Extremely useful as a synthetic intermediate of pharmaceuticals having the activity of, e.g. antiphlogistic and analogesic agent.
PROCESS: The compound of formula I is prepared either by reacting 1mol of alkyl.o- acetoacetamidobenzoate with 2mol of bromine in alcohol (e.g. methanol, ethanol, etc.) at ≤20°C, or by reacting 1mol of alkyl.o-acetoacetamidobenzoate with 1mol of bromine or 2mol of hydrogen bromide in an alcohol in the presence of hydrogen peroxide.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9083580A JPS5716848A (en) | 1980-07-03 | 1980-07-03 | Alkyl o-alpha-halogen-substituted acetoacetamidobenzoate and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9083580A JPS5716848A (en) | 1980-07-03 | 1980-07-03 | Alkyl o-alpha-halogen-substituted acetoacetamidobenzoate and its preparation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5716848A true JPS5716848A (en) | 1982-01-28 |
Family
ID=14009638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9083580A Pending JPS5716848A (en) | 1980-07-03 | 1980-07-03 | Alkyl o-alpha-halogen-substituted acetoacetamidobenzoate and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5716848A (en) |
-
1980
- 1980-07-03 JP JP9083580A patent/JPS5716848A/en active Pending
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