Study On The Synthesis And Photochromism Of The Phenoxyquinones

This paper reporting the synthesis and photochromism of the phenoxyquinones . Researching the domestic and international documents . Choosing the photochromic compounds of phenoxyquinones as the researching object The most signifinicant feati re of this material is its low fatigue. The reverse cycle can be repeated even 500 times without lose of material. Another important feature is that the 'ate of the thermal reaction "ana" to "trans" is negligible at room temperature.Try to synthesize the photochromic compounds of Phenoxyanthraquinones;Phenoxynaphthacen equinone;Phenoxypentaphenquinone;and Penoxyhaptaphenquinone.1 -Hydroxy-4-p-hydroxyphenoxy-9,10-anthraquinone;4-p-chlorophenoxy-1 -hydroxy-9,10-anthraquinone;1-Hydroxy-4-(2,4,e-trinitrophenoxy)-9,10-anthraquinone; 1 -chloro-2-hydro-xyl-4-phenoxy-9,10 -anthraquinone; 3-Methyl-1 -phenoxy-9,10-anthraquinone;1-p-chlorophenoxy-3-Methyl-9,10-anthraquin one;1-p-hydroxyphenoxy-3-Methyl-9,10-anthrac|uinone;1,4-diphenoxy-3-m ethyl-9,10-anthraquinone;4-p-chlorophenoxy-1-Hydroxy-2-methyl-9,10-ant hraxquinone;1-Hydroxy-4-p-hydroxyphenoxy-2-methyl-9,10-anthraquinone have been synthesized. Structures of all above compounds were determined by 1H-NMR ,13C-NMR , MS , IR , UV-Vis spectroscopy.