Process for the preparation of primary amines
US7220883B2 · kind B2 · utility
3Cited by
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26Claims
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Key dates
| Filing date | Jul 28, 2003 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Feb 5, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C213/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of primary amines of formula (I):where R3 represents an alkyl, cycloalkyl or aralkyl group, by reaction of a triazolium salt of formula (II):where R1 and R2 represent hydrogen or an alkyl, aralkyl or aryl group, R4 represents an alkyl or aralkyl group or a residue of an organic polymer functionalized by an alkylating group, and A− represents a halogen, alkylsulphonate, arylsulphonate, alkyl sulphate, hydrogensulphate, hemisulphate, perchlorate or hydroxide, with a hydride, in order to obtain an amine of formula (I), which is isolated, if desired, and intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.