Method for making an amine and an alkyl ester and method for reducing hydrogen cyanide levels in alkyl ester
US5527949A · kind A · utility
1Cited by
2References
11Claims
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Key dates
| Filing date | Aug 23, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Aug 23, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for making an amine includes the steps of heating a reaction mixture including a nitrile, an acid, water and a substrate compound capable of generating a carbonium ion by reaction with the acid to generate a first reaction intermediate; treating the first reaction intermediate with an acid in the presence of a primary alkanol to form a second reaction intermediate and an alkyl ester; separating the alkyl ester from the second reaction intermediate; and treating the second reaction intermediate with a base to form the amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.