Model photostable compounds

Abstract

Abstract The photostabilities and syntheses of 2,2′‐bis( o ‐hydroxyphenyl)‐5,5′‐bipyrimidine, 6,6′‐bis( o ‐hydroxyphenyl)‐3,3′‐bipyridine and 3,8‐bis( o ‐hydroxyphenyl)‐4,7‐phenanthroline are discussed. The syntheses of parent compounds lacking the o ‐hydroxy groups are also described.