ES305430A1 - Procedure for the preparation of omega-cian-carboxylic-aliphatic acids. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of omega-cian-carboxylic-aliphatic acids. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES305430A1 ES305430A1 ES0305430A ES305430A ES305430A1 ES 305430 A1 ES305430 A1 ES 305430A1 ES 0305430 A ES0305430 A ES 0305430A ES 305430 A ES305430 A ES 305430A ES 305430 A1 ES305430 A1 ES 305430A1
- Authority
- ES
- Spain
- Prior art keywords
- omega
- carboxylic
- translation
- preparation
- legally binding
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Process for the preparation of aliphatic ω -cyan-carboxylic acids, characterized in that it is heated at 140º -220º C until the development of gas, acids ω, ω -dicarboxºlicos; together with an amount of ammonia equivalent to the carboxyl group or less, which may be introduced in free form or in the form of an ammonia-releasing substance, or the monoammonium salt of a ω, ω dicarboxylic alone, respectively the monoammonium salt in the presence of the free dicarboxylic acid, then the reaction mixture is heated at 240º -350º C until the start of the gas started again, the reaction mixture is dissolved in dilute ammonia, extract the neutral materials from it with an organic solvent not immiscible with water, the residual ammoniacal solution is subjected to a steam distillation and then by extraction with an organic solvent not miscible with water or by precipitation from the now neutral solution to weakly acid, by dilution thereof with water, the omega-cyan-carboxylic acid is isolated. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1432363 | 1963-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES305430A1 true ES305430A1 (en) | 1965-03-16 |
Family
ID=4399845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0305430A Expired ES305430A1 (en) | 1963-11-22 | 1964-10-29 | Procedure for the preparation of omega-cian-carboxylic-aliphatic acids. (Machine-translation by Google Translate, not legally binding) |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE654172A (en) |
| CH (1) | CH456562A (en) |
| DE (1) | DE1468114A1 (en) |
| ES (1) | ES305430A1 (en) |
| GB (1) | GB1049229A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470928A (en) * | 1981-10-15 | 1984-09-11 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing cyanovaleric esters and caprolactam |
| FR2997949A1 (en) | 2012-11-09 | 2014-05-16 | Arkema France | SELECTIVE EXTRACTION OF OMEGA-FUNCTIONALIZED ACID AFTER OXIDIZING CUT OF UNSATURATED FATTY ACID AND DERIVATIVES |
-
1964
- 1964-06-04 CH CH1432364A patent/CH456562A/en unknown
- 1964-09-19 DE DE19641468114 patent/DE1468114A1/en active Pending
- 1964-10-09 BE BE654172D patent/BE654172A/xx unknown
- 1964-10-29 ES ES0305430A patent/ES305430A1/en not_active Expired
- 1964-11-13 GB GB4636664D patent/GB1049229A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE654172A (en) | 1965-02-01 |
| CH456562A (en) | 1968-07-31 |
| DE1468114A1 (en) | 1968-12-19 |
| GB1049229A (en) | 1966-11-23 |
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