GB318582A - Process for the manufacture of ª‰-aryl-ª‡-aminopropionic acids and their substitution products - Google Patents
Process for the manufacture of ª‰-aryl-ª‡-aminopropionic acids and their substitution productsInfo
- Publication number
- GB318582A GB318582A GB6934/29A GB693429A GB318582A GB 318582 A GB318582 A GB 318582A GB 6934/29 A GB6934/29 A GB 6934/29A GB 693429 A GB693429 A GB 693429A GB 318582 A GB318582 A GB 318582A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aryl
- acid
- heating
- substitution products
- manufacture
- 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
318,582. Hoffmann-La Roche &. Co., Akt.-Ges., F. Sept. 6, 1928, [Convention date]. #-Aryl-alpha-aminopropionic acids and their substitution products are prepared by heating the corresponding azlactones (lactimides) with hydriodic acid, to which acetic anhydride and red phosphorus may be added if desired. According to the examples, (1) phenylalanine is obtained by heating with hydriodic acid the azlactone resulting from the condensation of benzaldehyde with hippuric acid; (2) #-[3: 5-diiodo-4-(4<1>-oxyphenoxy)-phenyl]-alpha-aminopropionic acid is prepared by heating 4-[3<1> : 5<1>-diiodo-4<1>(4<11>-methoxyphenoxy)-benzylidene]-2-phenyl-5-oxazolone with hydriodic acid, acetic anhydride and red phosphorus ; the product may be converted by iodination into thyroxine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE318582X | 1928-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB318582A true GB318582A (en) | 1929-10-03 |
Family
ID=6151077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6934/29A Expired GB318582A (en) | 1928-09-06 | 1929-03-04 | Process for the manufacture of ª‰-aryl-ª‡-aminopropionic acids and their substitution products |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB318582A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2483530A (en) * | 1946-08-14 | 1949-10-04 | Merck & Co Inc | Beta-ethoxy-alpha-phenylacet-amidoacrylic acid |
-
1929
- 1929-03-04 GB GB6934/29A patent/GB318582A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2483530A (en) * | 1946-08-14 | 1949-10-04 | Merck & Co Inc | Beta-ethoxy-alpha-phenylacet-amidoacrylic acid |
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