Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs

US4578469A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hans-Matthias Deger · Hofheim, DE
• Rudiger Erckel · Eppstein, DE
• Horst Fruhbeis · Kelkheim, DE

Key dates

• Filing date: Sep 26, 1984
• Grant date: Mar 25, 1986
• Expiry date: Sep 26, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B57/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Coumarin compounds of the general formula (1) ##STR1## in which A denotes an oxygen atom or a grouping >N--R in which R represents a hydrogen atom or an alkyl radical of 1 to 18 carbon atoms which may be substituted by fluorine, chlorine or bromine atoms or by alkoxy.sub.C.sbsb.1.sub.-C.sbsb.4, dialkyl.sub.C.sbsb.1.sub.-C.sbsb.4 -amino, --SO.sub.2 --N(alkyl.sub.C.sbsb.1.sub.-C.sbsb.4).sub.2 or cyano groups or a cycloaliphatic, aromatic or heterocyclic radical which may be substituted by fluorine, chlorine or bromine atoms or by alkyl.sub.C.sbsb.1.sub.-C.sbsb.4, alkoxy.sub.C.sbsb.1.sub.-C.sbsb.4, hydroxyl, cyano, sulfonamide or --SO.sub.2 --N--(alkyl.sub.C.sbsb.1.sub.-C.sbsb.4).sub.2 groups, X denotes an oxygen atom or a grouping .gtoreq.N--R' in which R' represents a hydrogen atom or an alkyl.sub.C.sbsb.1.sub.-C.sbsb.18 carbonyl, alkoxy.sub.C.sbsb.1.sub.-C.sbsb.4 carbonyl, alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 carbamoyl or alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 sulfonyl group or an aryl, arylcarbonyl, arylcarbamoyl or arylsulfonyl radical which may be substituted by fluorine, chlorine or bromine atoms or by alkyl or alkoxy groups of 1 to 4 carbon atoms each or by cyano groups, Y denotes a hyd…