Benzimidazo-(1,2-a)-quinolines and process for their...

Details Benzimidazo-(1,2-a)-quinolines and process for their... Benzimidazo-(1,2-a)-quinolines and process for their...

C - Chemistry, Metallurgy

07

D

260/271.3

C07D 471/04 (2006.01)

Patent

CA 1072096

BENZIMIDAZO-[1,2-a]-QUINOLINES AND PROCESS FOR THEIR PREPARA- TION Abstract of the disclosure: Benzimidazo-[1,2-a]-quinolines of the formula Image I In the solid and dissolved state, the compounds of the in- vention are strongly fluorescing from reddish-blue to red, de- pending on the substitution. The compounds can be used as opti- cal brighteners and as fluorescent dyestuffs . Furthermore they are valuable intermediates for the preparation of optical brighte- ners and fluorescing dyestuffs. They are distinguished by a very good fastness to light.

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