GB439539A - An improved process for converting alkali salts of phenylalkyl barbituric acids into stable calcium compounds - Google Patents
An improved process for converting alkali salts of phenylalkyl barbituric acids into stable calcium compoundsInfo
- Publication number
- GB439539A GB439539A GB6883/35A GB688335A GB439539A GB 439539 A GB439539 A GB 439539A GB 6883/35 A GB6883/35 A GB 6883/35A GB 688335 A GB688335 A GB 688335A GB 439539 A GB439539 A GB 439539A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bromide
- calcium bromide
- dehydrated
- calcium
- barbiturate
- 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
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Stable calcium salts of phenylalkyl-barbituric acids are prepared by treating the corresponding alkali metal salts in the solid state with crystallized (i.e. hydrated) calcium bromide and mixing the product with wholly or partially dehydrated calcium bromide. If desired, the crystallized and dehydrated calcium bromide may be added at the same time, whilst other anhydrous bromides, such as potassium, magnesium or strontium bromide, may also be added. The products are useful as sedatives and soporifics. According to the examples; (1) sodium phenylethyl-barbiturate is triturated whilst warming with calcium bromide tetrahydrate, carbon dioxide of the air being excluded; the product is mixed with dehydrated calcium bromide; (2) sodium phenylallyl - barbiturate is treated with crystallized calcium bromide and the product mixed with dehydrated calcium bromide and potassium bromide. The sample furnished under Sect. 2 (5) is prepared by grinding sodium phenylethyl-barbiturate with calcium bromide hexahydrate and mixing with dehydrated calcium bromide and dehydrated strontium bromide.ALSO:In the preparation of calcium salts of phenyl-alkyl-barbituric acids from the alkali metal salts and hydrated calcium bromide, the product is stabilized by admixture with wholly or partially dehydrated calcium bromide or by using a mixture of the hydrated and dehydrated calcium bromide for the preparation. Other anhydrous bromides, such as potassium, magnesium or strontium bromide, may also be added. The products are useful as sedatives and soporifics. According to the examples: (1) sodium p phenylethyl-barbiturate is triturated with calcium bromide tetrahydrate and the product mixed with dehydrated calcium bromide; (2) sodium phenylallyl-barbiturate is treated with crystallized calcium bromide and mixed with dehydrated calcium bromide and potassium bromide. The sample furnished under Sect. 2 (5) is prepared by grinding sodium phenylethyl-barbiturate with calcium bromide hexahydrate and mixing with dehydrated calcium bromide and dehydrated strontium bromide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE439539X | 1934-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB439539A true GB439539A (en) | 1935-12-09 |
Family
ID=6507326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6883/35A Expired GB439539A (en) | 1934-03-05 | 1935-03-05 | An improved process for converting alkali salts of phenylalkyl barbituric acids into stable calcium compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB439539A (en) |
-
1935
- 1935-03-05 GB GB6883/35A patent/GB439539A/en not_active Expired
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