JPS51113824A - Preparation of gamma-chloroacetoacetyl chloride - Google Patents
Preparation of gamma-chloroacetoacetyl chlorideInfo
- Publication number
- JPS51113824A JPS51113824A JP3760875A JP3760875A JPS51113824A JP S51113824 A JPS51113824 A JP S51113824A JP 3760875 A JP3760875 A JP 3760875A JP 3760875 A JP3760875 A JP 3760875A JP S51113824 A JPS51113824 A JP S51113824A
- Authority
- JP
- Japan
- Prior art keywords
- preparation
- gamma
- chloroacetoacetyl chloride
- isomer
- chloroacetoacetyl
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: Preparation of high-quality ae-chloroacetoacetyl chloride free from α-isomer by the reaction of diketene with chlorine gas in the wetted wall column, which allows easier heat elimination and reaction control, and eliminates the formation of the α-isomer as byproduct.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3760875A JPS5823373B2 (en) | 1975-03-27 | 1975-03-27 | Gamma - Chloracetosaxane chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3760875A JPS5823373B2 (en) | 1975-03-27 | 1975-03-27 | Gamma - Chloracetosaxane chloride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS51113824A true JPS51113824A (en) | 1976-10-07 |
JPS5823373B2 JPS5823373B2 (en) | 1983-05-14 |
Family
ID=12502286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3760875A Expired JPS5823373B2 (en) | 1975-03-27 | 1975-03-27 | Gamma - Chloracetosaxane chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5823373B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675454A (en) * | 1979-11-01 | 1981-06-22 | Lonza Ag | Manufacture of gammaachloroacetoacetic acid chloride |
EP0037015A2 (en) * | 1980-04-02 | 1981-10-07 | Lonza Ag | Process for the preparation of 2-chloro-acetoacetic acid esters |
US4473508A (en) * | 1982-11-13 | 1984-09-25 | Lonza Ltd. | Process for the production of γ-chloroacetoacetic acid chloride |
-
1975
- 1975-03-27 JP JP3760875A patent/JPS5823373B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675454A (en) * | 1979-11-01 | 1981-06-22 | Lonza Ag | Manufacture of gammaachloroacetoacetic acid chloride |
JPH0244825B2 (en) * | 1979-11-01 | 1990-10-05 | Lonza Ag | |
EP0037015A2 (en) * | 1980-04-02 | 1981-10-07 | Lonza Ag | Process for the preparation of 2-chloro-acetoacetic acid esters |
US4473508A (en) * | 1982-11-13 | 1984-09-25 | Lonza Ltd. | Process for the production of γ-chloroacetoacetic acid chloride |
Also Published As
Publication number | Publication date |
---|---|
JPS5823373B2 (en) | 1983-05-14 |
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