Heterocyclic compounds

US4726911A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Joachim Krause · Dieburg, DE
• Peter Fuss · Mühltal, DE
• Reinhard Hittich · Seeheim-Jugenheim, DE
• Bernhard Scheuble · Alsbach, DE

Key dates

• Filing date: Oct 17, 1985
• Grant date: Feb 23, 1988
• Expiry date: Oct 17, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/3422
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula I EQU R.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --R.sup.2 I wherein PA0 R.sup.1 and R.sup.2 are each an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH.sub.2 groups can also be replaced by O atoms and/or CO groups and/or --OCO-- groups and/or --COO-- groups and/or --CH.dbd.CH-- groups, or are F, Cl, Br, CN or R.sup.3 --A.sup.3 --Z.sup.2 --, PA0 A.sup.1 is --A--, --A.sup.4 --A-- or --A--A.sup.4 --, PA0 A is a 1,3-dioxane-2,5-diyl or 1,3-dithiane-2,5-diyl group which is monosubstituted or polysubstituted in the 2-position and/or 4-position by alkyl each having 1-10 C atoms and/or in the 5-position by alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy each having 1-5 C atoms, or by F, Cl, Br or CN, PA0 A.sup.2, A.sup.3 and A.sup.4 each are 1,3-dithiane-2,5-diyl, piperidine-1,4-diyl, 1,4-bicyclo[2,2,2]octylene, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, 1,4-phenylene, 1,4-phenylene which is substituted by one or two F and/or Cl atoms and/or CH.sub.3 groups and/or CN groups and in which one or two CH groups can also be replaced by N atoms, or 1,4-cyclohexylene in which one or two non-adjacent CH.sub.2 groups can a…