Concentration of light over a particular area and novel fluoresc

Details Concentration of light over a particular area and novel fluoresc Concentration of light over a particular area and novel fluoresc

1982-08-20

1984-12-04

Demers, Arthur P.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

25230116, 260353, 260355, 260361, 546 23, 546 28, 548217, C07D 3900

Patent

active

044865872

ABSTRACT:
A process for concentrating light over a particular area by means of fluorescent compounds in plastic plates or films, wherein the fluorescent compounds used are those of the formula ##STR1## where Z is .dbd.N-- or .dbd.CH--, Y is --OSO.sub.2 R.sup.1, ##STR2## --OCOR.sup.1 or --OR.sup.3, or 2 Y together are ##STR3## where R is alkyl, X is fluorine, chlorine, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.20 -alkenyl, aralkyl, --COR.sup.1, --SO.sub.2 R.sup.1, --OPO(OR.sup.2).sub.2, --NH--COR.sup.1 or --NH--SO.sub.2 --R.sup.1, m is 2, 3 or 4, n is 0, 1 or 2, R.sup.1 is unsubstituted or substituted alkyl, alkenyl or an aromatic or heteroaromatic radical and, when Y is --OCOR.sup.1, may furthermore be alkoxy or cycloalkoxy, R.sup.2 is alkyl or cycloalkyl and R.sup.3 is alkyl, alkenyl, C.sub.2 - or C.sub.3 -alkylenecarboalkoxy, alkyl-substituted benzyl or cyclohexyl or a monocyclic, bicyclic or polycyclic saturated hydrocarbon radical.
Some of the compounds I and II are new.
The compounds I and II exhibit fluorescence in the range from 580 to 750 nm, and have a very high fluorescent quantum efficiency, particularly good light fastness and high thermostability.

REFERENCES:
patent: 1713680 (1929-05-01), Stein et al.
patent: 1736084 (1929-11-01), Kranzlein et al.
patent: 2075456 (1937-03-01), Neresheimer et al.
patent: 3678053 (1972-07-01), Boffa et al.
patent: 4198529 (1980-04-01), Grelat et al.
Chemical Abstracts 9th Collective Index, pp. 13877CS-13878CS.
Chemical Abstracts, vol. 94, (1981), p. 619, #74688.

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