Method for the preparation of n-propyl bromide
US7217849B2 · kind B2 · utility
1Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2002 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Nov 11, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is described for producing n-propyl bromide of a high degree of purity, which contains isopropyl bromide in an amount lower than 0.1% w/w, and usually lower than 0.05%. The method is characterized in that n-propanol is reacted with HBr which is in gas form, preferably dry, and which is in excess over the stoichiometric amount, wherein the excess HBr is at the end of the reaction in an aqueous solution formed from the reaction water. The invention further relates to N-propyl bromide of high purity, containing typically less than 500 ppm of isopropyl bromide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.