Triazolyl coumarin compounds, processes for their preparation and their use as whiteners and laser dyestuffs
First Claim
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1. A coumarin compound of the formulawhereinR1 is C1-2 alkyl or phenyl,R2 is hydrogen, methyl or chlorine, andA is C1-4 -alkyl optionally substituted by Cl, CN or O--C1-2
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Abstract
Coumarin compounds of the formula ##STR1## in which the substituents have the meanings given in
the description,
are valuable whiteners for natural fibre materials, such as wool, or synthetic polycondensates. They can also be used as scintillators and laser dyestuffs.
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Citations
2 Claims
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1. A coumarin compound of the formula
wherein R1 is C1-2 alkyl or phenyl, R2 is hydrogen, methyl or chlorine, and A is C1-4 -alkyl optionally substituted by Cl, CN or O--C1-2
Specification
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Current AssigneeBayer AG
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Original AssigneeBayer AG
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InventorsEckstein, Udo, Raue, Roderich, Schellhammer, Carl-Wolfgang
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Primary Examiner(s)Rollins, Alton D.
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Application NumberUS06/109,957Time in Patent Office834 DaysField of Search548/256, 542/458US Class Current548/256CPC Class CodesC09B 57/02 Coumarine dyesD06L 4/60 Optical bleaching or bright...
