GB805018A - Production of alkylamines - Google Patents
Production of alkylaminesInfo
- Publication number
- GB805018A GB805018A GB25188/56A GB2518856A GB805018A GB 805018 A GB805018 A GB 805018A GB 25188/56 A GB25188/56 A GB 25188/56A GB 2518856 A GB2518856 A GB 2518856A GB 805018 A GB805018 A GB 805018A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrolysis
- alkyl
- mol
- formamides
- water
- 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
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/01—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms
- C07C211/02—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
- C07C211/03—Monoamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Alkyl primary amines are obtained by hydrolysis of N-alkyl-formamides with at least one mol. of sulphuric acid in the presence of water, the mixture being heated to at least 160 DEG C. under autogenous pressure until the liberated formic acid is substantially completely decomposed. The process is particularly applicable to the N-alkyl-formamides obtained by reacting a secondary or tertiary olefin with hydrogen cyanide in the presence of sulphuric acid and water and the hydrolysis step may be carried out without isolation of the formamide. The hydrolysed reaction mixture is neutralized with an alkali metal, alkaline earth or ammonium hydroxide and the amine isolated, e.g. by distillation. Examples show (1) the production of dodecylamine by hydrolysis of the product from propylene tetramer and hydrogen cyanide; (2) sec- and t-butylamines similarly from butene-1 and isobutylene; (3) the hydrolysis of N-n-propylformamide. The process is also applicable to N-alkyl-formamides where the alkyl group is methyl, ethyl, isopropyl, n-butyl, n-pentyl, isopentyl, 2-methylbutyl-2-, 2-methylpentyl, n-hexyl, 2-ethylhexyl, iso-octyl, 2 : 4 : 4-trimethylpentyl, hexyl-(propylene dimer), nonyl-(propylene trimer) and dodecyl (butene trimer). It is preferred to use 1-1.5 mol. of sulphuric acid and at least 1 mol. of water for the hydrolysis per mol. of amide.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US805018XA | 1955-08-18 | 1955-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB805018A true GB805018A (en) | 1958-11-26 |
Family
ID=22157793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25188/56A Expired GB805018A (en) | 1955-08-18 | 1956-08-17 | Production of alkylamines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB805018A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7736525B2 (en) * | 2005-02-08 | 2010-06-15 | Basf Corporation | Method of making an alkoxylated polyethylenimine product |
-
1956
- 1956-08-17 GB GB25188/56A patent/GB805018A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7736525B2 (en) * | 2005-02-08 | 2010-06-15 | Basf Corporation | Method of making an alkoxylated polyethylenimine product |
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