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:
Feb. 02, 1988
Filed:
Jan. 22, 1987
Bernd Janssen, Ludwigshafen, DE;
Stefan Karbach, Ludwigshafen, DE;
Hans-Gert Recker, Ludwigshafen, DE;
Marco Thyes, Ludwigshafen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Alpha,beta-substituted acroleins of the general formula I ##STR1## where A and B are identical or different and are each C.sub.1 -C.sub.4 -alkyl, naphthyl, biphenyl or phenyl which may be monosubstituted or polysubstituted by halogen, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, phenoxy or phenylsulfonyl, are prepared by a process in which a compound of the general formula III ##STR2## where A has the above meanings and R.sup.1 and R.sup.2 are identical or different and are each C.sub.1 -C.sub.4 -alkyl or together possess the carbon atoms required to complete a ring, is reacted with a phosphorus compound of the general formula IV or V ##STR3## where B the meanings stated above, R.sup.1 and R.sup.2 are as defined above and X.sup..crclbar. is a halide ion, in the presence of a base. The alpha,beta-substituted acroleins can be further processed to give hydroxymethyloxiranes.