The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 1978
Filed:
Nov. 15, 1977
Peter Hardt, Visp, CH;
Lonza, Ltd., Basel, CH;
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.