GB763783A - Novel barbituric acid derivatives and a process for the preparation thereof - Google Patents
Novel barbituric acid derivatives and a process for the preparation thereofInfo
- Publication number
- GB763783A GB763783A GB1770/55A GB177055A GB763783A GB 763783 A GB763783 A GB 763783A GB 1770/55 A GB1770/55 A GB 1770/55A GB 177055 A GB177055 A GB 177055A GB 763783 A GB763783 A GB 763783A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dimethyl
- isopropyl
- barbituric acid
- preparation
- dicarbalkoxy
- 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.)
- Expired
Links
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
The invention comprises 6-isopropyl-3,4-dimethyl - spiro - [cyclohexane - 1,51 - barbituric acid] and its salts, and its preparation by heating 2,3-dimethyl-butadiene with isobutylidenemalonic acid dialkyl ester, catalytically reducing the resulting 1,1 - dicarbalkoxy - 3,4 - dimethyl - 6 - isopropyl - cyclohexene - (3), heating the thus formed 1,1-dicarbalkoxy-3,4-dimethyl - 6 - isopropyl - cyclohexane with urea in the presence of an alkali metal alkoxide such as sodium ethoxide, and isolating the product by acidification with a weak acid. The salts are produced by reacting the barbituric acid derivative with an alkali metal hydroxide, an alkaline earth metal hydroxide, ammonium hydroxide or a basic amine such as diethylamine, diethanolamine, ethylene diamine, N : N-diethyl-ethylene diamine or methyl-glucamine. An example is given and the sodium salt of the product is prepared.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US763783XA | 1954-01-25 | 1954-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB763783A true GB763783A (en) | 1956-12-19 |
Family
ID=22131622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1770/55A Expired GB763783A (en) | 1954-01-25 | 1955-01-20 | Novel barbituric acid derivatives and a process for the preparation thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB763783A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105315216A (en) * | 2015-11-19 | 2016-02-10 | 中国农业大学 | Barbituric acid-cyclohexene spiro compounds and preparation methods thereof |
-
1955
- 1955-01-20 GB GB1770/55A patent/GB763783A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105315216A (en) * | 2015-11-19 | 2016-02-10 | 中国农业大学 | Barbituric acid-cyclohexene spiro compounds and preparation methods thereof |
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