GB349455A - Improvements relating to barbituric acid derivatives - Google Patents
Improvements relating to barbituric acid derivativesInfo
- Publication number
- GB349455A GB349455A GB5873/30A GB587330A GB349455A GB 349455 A GB349455 A GB 349455A GB 5873/30 A GB5873/30 A GB 5873/30A GB 587330 A GB587330 A GB 587330A GB 349455 A GB349455 A GB 349455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyclopentenylbarbituric
- acid
- alkyl
- aryl
- bromallyl
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Alkyl- or aryl- D 2, 3 - cyclopentenylbarbituric acids are prepared by condensing an alkyl- or aryl-D 2, 3-cyclopentenylmalonic acid ethyl ester with urea in the presence of alcohol and sodium ethylate, distilling off the alcohol progressively in an open vessel and heating the product to about 115 DEG C. The preparation of C : C-n-propyl-, isopropyl-, and n-butyl- D 2, 3-cyclopentenylbarbituric acids is described. The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of the same compounds by treating the sodium compound of D 2, 3-cyclopentenylbarbituric acid with an alkyl or aryl halide and includes an example of the production of C : C-b -bromallyl-D 2, 3-cyclopentenylbarbituric acid by interaction of D 2, 3- cyclopentenylbarbituric acid dissolved in caustic soda with b -bromallyl bromide. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR349455X | 1930-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB349455A true GB349455A (en) | 1931-05-21 |
Family
ID=8892745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5873/30A Expired GB349455A (en) | 1930-01-16 | 1930-02-21 | Improvements relating to barbituric acid derivatives |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB349455A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2744900A (en) * | 1953-03-05 | 1956-05-08 | Basf Ag | Production of new derivatives of barbituric acid |
-
1930
- 1930-02-21 GB GB5873/30A patent/GB349455A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2744900A (en) * | 1953-03-05 | 1956-05-08 | Basf Ag | Production of new derivatives of barbituric acid |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB349455A (en) | Improvements relating to barbituric acid derivatives | |
GB514053A (en) | ||
GB460249A (en) | Manufacture of n-(aminoalkyl)-anthranilic acid alkyl esters | |
GB470808A (en) | Improvements in photographic processing baths and compositions therefor | |
GB415472A (en) | Improvements in or relating to the manufacture of oxalic acid and esters thereof | |
GB417383A (en) | Manufacture of alcohols from marine animal waxes | |
GB229958A (en) | Improvements in or relating to the manufacture of esters | |
GB454779A (en) | Process for the manufacture of n-methyl-c, c-allyl-isopropyl-barbituric acid | |
GB244122A (en) | Manufacture of barbituric acid derivatives | |
GB231150A (en) | ||
GB491163A (en) | A process for the manufacture of orthotolylbiguanide from orthotoluidine and dicyanodiamide | |
GB392410A (en) | Manufacture of carbocyanine dyes and intermediate products | |
GB498737A (en) | Improvements in or relating to rubber conversion products and methods of making the same | |
GB399737A (en) | Improved manufacture of water-soluble crystalline aluminium salts of lower fatty acids | |
GB223221A (en) | ||
GB435480A (en) | Improvements in or relating to the manufacture of barbituric acid derivatives | |
GB437296A (en) | Manufacture of derivatives of n-butylaminobenzene | |
GB393266A (en) | Improvements relating to the production of water-free ethyl alcohol | |
GB473555A (en) | Process for the manufacture of readily soluble salts of 9-amino-acridine compounds | |
GB393265A (en) | Improvements relating to the production of water-free ethyl alcohol | |
GB468503A (en) | Process for the production of new derivatives of barbituric acid | |
GB366140A (en) | Process for the manufacture of derivatives of ª‰-hydroxynaphthoic acid | |
GB499256A (en) | Process for the manufacture of 2, 4-dioxo-3, 3-dialkyl-tetrahydro-pyridine-6-carboxylic acid esters or the corresponding free acids | |
GB363346A (en) | The production of x-ray photographs | |
GB469157A (en) | Process for the manufacture of laevo-ascorbic acid |