| abstract |
NEW MATERIAL:A compound expressed by formula I [R 1 is F-containing substituent group of R f O-or (R f ) 2 N-(R f is fluoroalkyl, fluoroaryl or fluoroaralkyl); R 2 and R 3 are (substituted) alkyl, aryl, aralkyl, aliphatic ring, heterocyclic ring or residue required to link R 2 with R 3 and form a 5-to 6-membered ring; Ar 1 and Ar 2 are aryl which may have a substituent group other than R 1 ; l is 0 or 1; m and n are 0-3, provided that m and n are not simultaneously 0]. n EXAMPLE: 4, 4'-Bis (2,2,2-trifluoroethoxy) benzophenone. n USE: An electrophotographic sensitive unit. n PREPARATION: An acetaldehyde derivative expressed by formula II is reacted with a secondary amine expressed by formula III. n COPYRIGHT: (C)1992,JPO&Japio |