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:
Jul. 02, 1991
Filed:
Jul. 13, 1989
Hans H Schubert, Frankfurt am Main, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
The present invention relates to a process for the preparation of compounds of the formula I ##STR1## in which Hal denotes F, Cl, Br or I; X denoted O, S or CH.sub.2 ; Y denotes CH or N; R.sup.1 denotes H or (C.sub.1 -C.sub.4 -alkyl; R.sup.2 denotes H, F, Cl or Br and R.sup.3 denotes H, F, Cl, Br, (C.sub.1 -C.sub.4)alkyl or (C.sub.1 -C.sub.4)alkoxy, which comprises reacting a compound of the formula II ##STR2## in which aryl stands for an unsubstituted or substituted phenyl, naphthyl or thienyl radical of the formulae (A), (B) or (C) ##STR3## in which R.sup.4, R.sup.5 and R.sup.6 independently of each other denote H, alkyl, alkoxy, alkylthio, dialkylamino, phenoxy, phenylthio or phenyl and m, n and o independently of each denote the values 0, 1 or 2, and X, Y, R.sup.1, R.sup.2 and R.sup.3 are as defined in formula I,