Process for the production of 2-vinyl pyridine
US4116968A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Nov 15, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of 2-vinyl pyridine from a 2-(.beta.-substituted ethyl)-pyridine involves using, as the starting material, a 2-(.beta.-aminoethyl)-pyridine having the formula set out below. The 2-(.beta.-aminoethyl)-pyridine is split by the action of a carrier-bound alkali hydroxide, as a catalyst, at a temperature between 100.degree. and 500.degree. C. into 2-vinyl pyridine and the corresponding secondary amine. The 2-(.beta.-aminoethyl)-pyridine has the formula: ##STR1## wherein R.sub.1 is the same as or different from R.sub.2, and R.sub.1 and R.sub.2 each are alkyl having one to eight carbon atoms, cycloalkyl, wherein the alkyl moiety has three to eight carbon atoms, or aralkyl, wherein the alkyl moiety has one to eight carbon atoms, or R.sub.1 and R.sub.2 together are --(CH.sub.2).sub.n -- wherein n is 4 or 5 or R.sub.1 and R.sub.2 together are --(CH.sub.2).sub.2 --O --(CH.sub.2).sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.