| 摘要 |
NEW MATERIAL:A styryl compound expressed by formula I . USE:An organic photoconductime material for electrophotography and fluorecent brightening agent. sensitized optically or chemically by a sensitizer, e.g. a dye or Lewis acid, and useful particularly as a charge transfer material in the so-called functional separation type photosensitive material containing an organic pigment or inorganic pigment as an electron charge generator. PREPARATION:A 1,1-diphenylmethylphosphonic acid ester expressed by formula II(R is lower alkyl) is reacted with a 4,4'-diformyltriphenylamine expressed by formula III to afford the aimed styryl compound expressed by formula I .
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