Process for the acylation of aromatic ethers
US5817878A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jan 9, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns a process for the acylation of an aromatic ether. Preferably, the invention relates to a process for the acylation of an unsubstituted aromatic ether, in particular anisole. The acylation process of the invention consists of reacting the ether with an acylation agent in the presence of a zeolitic catalyst, and is characterized in that the acylation reaction is carried out in the presence of an effective quantity of a catalyst comprising a beta zeolite with an atomic ratio denoted "global Si/Me.sup.1 " between the number of atoms of the element silicon and the number of atoms of every trivalent element Me.sup.1 contained in the zeolite of no less than 15, preferably in the range 15 to 55, and more preferably in the range 18 to 35.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.