Fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles, their preparation and their use

US5420309A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Stefan Bohm · Cologne, DE
• Albrecht Marhold · Leverkusen, DE

Key dates

• Filing date: Oct 29, 1993
• Grant date: May 30, 1995
• Expiry date: Oct 29, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D317/46
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles of formula (I): ##STR1## in which A is C-R.sup.4 or N, PA0 X is hydrogen, fluorine, chlorine or bromine and PA0 R.sup.1 to R.sup.4 can be identical to or different from one another and are each hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogeno-C.sub.1 -C.sub.6 -alkyl, C.sub.6 -C.sub.10 -aryl, CHO, COOH, COCl, CN, OH, NCO, COO--C.sub.1 -C.sub.6 -alkyl, NO.sub.2, NH.sub.2, NH--C.sub.1 -C.sub.6 -alkyl, N(C.sub.1 -C.sub.6 -alkyl).sub.2, SO.sub.2 Cl, SO.sub.3 H, SO.sub.3 Na or SO.sub.3 K, it also being possible for two adjacent radicals from the series R.sup.1 to R.sup.4 together to be an optionally substituted --CH.dbd.CH--CH.dbd.CH-- bridge, processes for their preparation and their use for the preparation of plant protection agents.