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:
Jun. 28, 1988
Filed:
Feb. 05, 1987
Alfred Ruland, Hirschberg, DE;
Wolfgang Reuther, Heidelberg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Ketene O,N-acetals of the formula I ##STR1## where R.sup.1 is tertiary alkyl of 4 to 6 carbon atoms, R.sup.2 is hydrogen, R.sup.3 is phenyl which is unsubstituted or substituted by halogen, alkoxy, alkyl, phenyl, phenoxy, cyano, nitro or trifluoromethyl and ##STR2## is a triazole, pyrazole, benzimidazole or imidazole radical, are prepared by a process in which a ketene O,O-acetal of the formula II ##STR3## where R.sup.1, R.sup.2 and R.sup.3 have the above meanings and R.sup.4 is phenyl which is unsubstituted or substituted by halogen, alkoxy, alkyl, phenyl, phenoxy, cyano, nitro or trifluoromethyl, is reacted with a compound of the formula ##STR4## where ##STR5## has the above meanings, at elevated temperatures.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile