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:
Oct. 10, 1989
Filed:
Nov. 02, 1987
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
2-Substituted 4-acyloxy-2-butenals of the general formula I ##STR1## where R.sup.1 is alkyl of 1 to 12 carbon atoms which may be substituted by cycloalphatic, aromatic or heterocyclic radicals, by alkenyl or alkynyl or by hydroxyl, ether, thioether, acetoxy acyl, alkylamino, carboxyl or carbalkoxy, and R.sup.2 is acyloxy, are prepared by reacting a monosubstituted acetaldehyde of the general formula II ##STR2## where R.sup.2 has the abovementioned meaning, with an aldehyde of the general formula III ##STR3## where R.sup.1 has the abovementioned meaning, in the presence of a linear or cyclic secondary amine and of an organic acid at from 20.degree. to 100.degree. C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile