Patent ID: 6248264
Filing Date: 2001-06-19
Classification: C07D

Abstract:
A polymeric host material including, or a solution of, a naphtho[1,2-b]pyran of general formula (I) ##STR17##wherein R.sup.1 and R.sup.2 are each selected from unsubstituted, mono-, di- or polysubstituted aryl groups and heteroaryl groups, wherein each aryl group is not a naphthyl group;R.sup.5 is selected from linear or branched C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.20 cycloalkyl, C.sub.1 -C.sub.20 bicycloalkyl, C.sub.1 -C.sub.20 polycycloalkyl, linear or branched C.sub.1 -C.sub.10 haloalkyl, linear or branched C.sub.1 -C.sub.10 perhaloalkyl, linear or branched C.sub.1 -C.sub.10 perhaloalkenyl, linear or branched C.sub.1 -C.sub.10 alkenyl, C.sub.1 -C.sub.10 alkynyl, linear or branched C.sub.1 -C.sub.10 alkoxy, linear or branched C.sub.1 -C.sub.10 alkylthio, linear or branched C.sub.1 -C.sub.10 alkoxy, linear or branched C.sub.1 -C.sub.10 hydroxyalkyl, linear or branched C.sub.1 -C.sub.10 aminoalkyl, aryl, heteroaryl, halogen, nitrile, nitro, amino, linear or branched C.sub.1 -C.sub.20 alkoxycarbonyl, hydroxyl, formyl, acetyl, amido, C.sub.1 -C.sub.5 alkyl amido, C.sub.1 -C.sub.5 dialkylamido, aroyl, benzoyl, alkyl C.sub.1 -C.sub.5 amino, dialkyl C.sub.1 -C.sub.5 amino, arylamino, diarylamino, aryl C.sub.1 -C.sub.5 alkylamino and cyclicamino groups, arylsulfinyl, arylsulfanyl, arylsulfonyl, linear or branched C.sub.1 -C.sub.10 alkylsulfonyl, P(O)(O--C.sub.1 -C.sub.10 alkyl).sub.2 or is an alkenyl function of general formula: ##STR18##wherein R.sup.11 and/or R.sup.12 and/or R.sup.13 is hydrogen or R.sup.5,R.sup.3, R.sup.4, R.sup.6, R.sup.8 and R.sup.10 are each hydrogen, R.sup.1, R.sup.2 or R.sup.5, andR.sup.7 and/or R.sup.9 is hydrogen or an amino group provided that R.sup.7 and R.sup.9 are not both hydrogen.