ES284310A1 - A procedure to prepare anilides (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure to prepare anilides (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES284310A1 ES284310A1 ES0284310A ES284310A ES284310A1 ES 284310 A1 ES284310 A1 ES 284310A1 ES 0284310 A ES0284310 A ES 0284310A ES 284310 A ES284310 A ES 284310A ES 284310 A1 ES284310 A1 ES 284310A1
- Authority
- ES
- Spain
- Prior art keywords
- propionic acid
- water
- aliphatic hydrocarbon
- vapors
- reaction mixture
- 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
A process of preparing anilides of the formula ** (See formula) ** where X is chlorine or the methyl group, characterized by (a) collecting a compound consisting of 3,4-dichloro aniline or 3-chloro-4-methylaniline, propionic acid and hydrogen chloride, providing from 1.3 to 1.7 moles of propionic acid per mole of said compound and the hydrogen chloride being present in the mixture in an amount of 1% to 4% by weight of said compound; (b) heating the resulting mixture to reaction temperature, whereby water is formed in the reaction mixture; (c) vaporizing propionic acid and water from the reaction mixture; (d) contacting the resulting vapors with an aliphatic hydrocarbon of 8 or 9 carbon atoms boiling between 100 and 120º C in a sufficient proportion to form an azeotrope of aliphatic hydrocarbon and water in said vapors; (e) fractionating the vapors containing said aliphatic hydrocarbon, said propionic acid and said water; (f) returning propionic acid from the fractionating vapors to the reaction mixture; (g) condensing said azeotrope; (h) separating and removing water from the resulting condensate; (i) returning the aliphatic hydrocarbon from said condensate to the fractionating vapors until water is no longer separated; (j) then dispelling the aliphatic hydrocarbon by distillation; (k) expelling propionic acid by distillation until it is substantially removed from the reaction mixture; and (l) collecting the resulting anilide in the form of a residue. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17677962A | 1962-03-01 | 1962-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES284310A1 true ES284310A1 (en) | 1963-05-16 |
Family
ID=38569913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0284310A Expired ES284310A1 (en) | 1962-03-01 | 1963-01-19 | A procedure to prepare anilides (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES284310A1 (en) |
-
1963
- 1963-01-19 ES ES0284310A patent/ES284310A1/en not_active Expired
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