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. 23, 1999
Filed:
Jun. 20, 1997
Hoechst Aktiengesellschaft, , DE;
Abstract
The present invention relates to compounds of the formula (I) ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are identical or different and, independently of one another, are hydrogen, an alkyl or alkoxy group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, or R.sup.1 and R.sup.2 including the respective carbon atoms bound to them form a ring containing 6 carbon atoms, m and n independently of one another are 0 or 1 and (m+n) is 1 or 2, and R is an unsubstituted phenyl or naphthyl radical, or a phenyl or naphthyl radical substituted by an alkyl group having 1 to 4 carbon atoms or an amino or dialkylamino group containing a total of 2 to 8 carbon atoms, and to a process for their preparation.