Process for the alkylation of aromatic amines
US5155271A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1990 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Jun 25, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C315/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the preparation of compounds of the formula ##STR1## in which Q is substituted or unsubstituted C.sub.1 -C.sub.6 alkyl, A is a direct bond or a bridging member, s is the number 1 or 2, Z is a radical of the formula --CH.sub.2 CH.sub.2 OH, --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 --Y, and Y is a leaving group, and the benzene or napthalene nucleus I can be further substituted, which comprises reacting compounds of the formula ##STR2## with compounds of the formula EQU Q--OH (3) in which A, s, Z and Q are as defined under formula (1), in the presence of hydrogenation catalysts, and then carrying out further conversion reactions where appropriate. The compounds obtained by the process according to the invention are suitable as intermediates for the preparation of reactive dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.