Abstract: Novel dyestuffs of the general formula ##STR1## wherein R designates a lower alkyl or alkenyl radical andR.sup.1 and R.sup.2 designate lower alkyl or alkenyl radicals which, together with the nitrogen atom to which they are bonded, can form a 5-membered or 6-membered heterocyclic ring,and whereinR, R.sup.1 and R.sup.2 can be substituted by non-ionic radicals, and at least one of the radicals R, R.sup.1 and R.sup.2 is substituted by an aryl radical, directly or via a bridge, orone of the radicals R.sup.1 or R.sup.2 represents an aryl radical, the ring a can be substituted by 1 or 2 methyl or ethyl radicals,the ring b can be substituted by 1 or 2 methyl, ethyl, methoxy or ethoxy radicals or by 1 halogen atom andAn.sup.- represents an anion,are particularly suitable for dyeing paper.

Abstract: Cationic styryl dyestuffs of the formula ##STR1## in which A.sup.1 is an alkyleneoxy or alkyleneamino radical,D.sup.1 is a direct bond or divalent radical,An is an anion, andthe terminal phenyl ring is unsubstituted or substituted by CN, alkyl or alkoxy. The compounds are suitable for dyeing, enscribing and printing paper for dyeing and printing synthetic fibres, especially made of polyacrylonitrile, acid-modified polyesters or polyamides.

Abstract: Cationic styryl dyestuffs of the general formula ##STR1## wherein Q.sup.+ designates a cationic grouping,X designates a connecting member, andR designates hydrogen, alkyl, alkenyl, aralkyl, aryl, a radical of the formula --X--Q.sup.+ An.sup.- or, by ring closure with --X--Q.sup.+ and the N atom, form a heterocyclic structure of the formula ##STR2## where R.sup.2 is identical to hydrogen, alkyl, alkenyl or aralkyl, andR.sup.3 is identical to alkyl, orR.sup.2 and R.sup.3 together are identical to (CH.sub.2).sub.4 or (CH.sub.2).sub.5, andA designates a 1,4-arylene group, which optionally gives a fused ring system by ring closure with N-R,R.sup.1 designates hydrogen or alkyl,B designates a divalent, non-ionic aromatic and/or hetero-aromatic bridge, andAn.sup.- designates an anion,and the cyclic and acyclic substituents, connecting members and bridges can carry non-ionic radicals, are used for dyeing natural and synthetic cationically colorable substrates, preferably for dyeing paper.

Abstract: Styryl dyestuffs of the general formula ##STR1## wherein Het represents a pyridinium radical having the structure ##STR2## R and R.sup.1 independently of one another designate lower alkyl or alkenyl groups, which can be substituted by non-ionic radicals,ring A can be substituted by C.sub.1 - to C.sub.4 -alkyl,ring B can be substituted by C.sub.1 - to C.sub.4 -alkyl, C.sub.1 - to C.sub.4 -alkoxy or halogen,D represents the remaining members of a 5-membered to 7-membered heterocyclic ring andAn.sup.- represents an anion,are used for dyeing natural and synthetic substrates which can be dyed with cationic dyestuffs, in particular for beater-dyeing paper and for writing and printing on paper.

Abstract: Styryl dyestuffs of the formula ##STR1## wherein Q.sym. represents a grouping containing a quaternary nitrogen atom and A represents a bridge member,at least one of the radicals R and R.sub.1 denotes a carbocyclic or heterocyclic 5-membered or 6-membered ring optionally bonded via a linking member to the nitrogen atom, or, with the o-position of ring a, forms a heterocyclic structure of this type, and the second radical can also represent alkyl or alkenyl, orR and R.sub.1 together form a 5-membered or 6-membered ring, andA.crclbar. represents an anion,are suitable for dyeing, enscribing and printing paper and for dyeing and printing synthetic fibres, especially made of polyacrylonitrile, acid-modified polyesters or polyamides.

Abstract: The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## wherein B is a bridge member, R is hydrogen, alkyl, aryl or the remaining members of a partially saturated ring fused to the ring "a", Z is preferably CN and n denotes the numbers 3 to 5.The dyestuffs are outstandingly suitable for the dyeing of hydrophobic fibre materials in yellow shades. The dyeings are distinguished by excellent fastness to light.

Abstract: The invention is directed to dyestuffs of the formula ##STR1## wherein THE PHENYL NUCLEI A, B, D and E can each be substitutedm is 2 or 3 andn is 1-3.The dyestuffs are outstanding for dyeing polyesterfibres in yellow shades. They are distinguished by their high stability in boiling dyebathes at pH 7 to 10.

Abstract: Process for the preparation of styryl dyestuffs, characterized in that, in a one-pot reaction, amines of the general formula form ##STR1## wherein R.sub.1 denotes alkyl or aryl,R.sub.2 denotes hydrogen, alkyl or aryl,R.sub.3 -r.sub.6 denote hydrogen or non-ionic substituents, preferably alkyl, alkoxy, nitro or halogen or R.sub.1 with R.sub.3 or R.sub.5 conjointly from the remaining members of a 5-membered or 6-membered ring system which optionally contains further hetero-atomsAre treated with at least 1 equivalent of a Vilsmeier reagent, unconverted Vilsmeier reagent is decomposed, the pH value is adjusted to above 4 by addition of bases and subsequently--without any intermediate isolation--the product is treated with a methylene-active compound of the formula ##STR2## wherein X represents a nitrile or acyl group.

Abstract: The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## in which A is arylB is an alkylene bridge,D denotes the remaining members of a heterocycleY denotes a non-ionic substituent,n is 0, 1, 2 or 3 andZ denotes a cyano group or a carboxylic acid ester group.The dyestuffs are outstanding suitable for the dyeing of synthetic fibre materials which are dyed in greenish-yellow shades with good fastness properties, especially good resistance to hydrolysis.

Abstract: Cationic azodyestuffs of the formula ##STR1## in which the substituents have the meaning stated below, are suitable for dyeing and printing of natural and synthetic materials especially polyacrylonitrile and acid modified polyesters and polyamides.They are also suitable for dyeing and printing of cellulose acetate, coir, jute, sisal, silk tannin-treated cotton, paper, ball-pen pastes, rubber stamps inks, and for use in flexographic printing.

Abstract: Cationic dyestuffs of the formula ##STR1## wherein R represents alkyl, alkenyl, cycloalkyl or aralkyl,R.sub.1 represents hydrogen, alkyl, alkenyl, cycloalkyl or aralkyl,R.sub.2 represents alkylene,Y represents oxygen or sulphur,R.sub.3 represents a direct bond or -CO-,A represents a carbocyclic six-membered ring or a heterocyclic ring,X.sup.- represents an anion andm represents the numbers 0 or 1,With the proviso that m can only be 1 if R.sub.3 denotes an alkylene group, are suitable for dyeing and printing of natural and synthetic materials.

Abstract: The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## in which X is an O- or S-atom,B is an alkylene group,R is a hydrogen atom, an alkyl or aryl or the remaining members of ring system which is fused to the ring c,Z is a cyano group or a carboxylic acid ester.The dyestuffs are outstanding suitable for the dyeing of synthetic fibre materials which are dyed in greenish-yellow shades with good fastness properties, especially good resistance to hydrolysis.

Abstract: The invention relates to water-insoluble styryl dyestuffs of the formula ##STR1## wherein B is a bridge member, R is hydrogen, alkyl, aryl or the remaining members of a partially saturated ring fused to the ring a, Z is preferably CN and n denotes the numbers 3 to 5. The dyestuffs are outstandingly suitable for the dyeing of hydrophobic fiber materials in yellow shades. The dyeings are distinguished by excellent fastness to light.

Abstract: The invention relates to dyestuffs of the formula ##STR1## are employed, WHEREINR denotes an alkyl, aralkyl or aryl radical,R.sub.1 denotes hydrogen, an alkyl radical or a radical of the formula R--SO.sub.2 NH--B--,B denotes an alkylene chain optionally interrupted by hetero-atoms, andX denotes a nitrile group or the radical CO.sub.2 R.sub.2,whereinR.sub.2 represents alkyl or aralkyl.The dyestuffs are preferrably suitable for dyeing synthetic fiber materials from organic water-immiscible solvents, according to the exhaustion process.