| abstract |
NEW MATERIAL:The compound of formula I [R 1 and R 2 are alkyl. allyl, benzyl or aryl which may have substituent group or R 1 and R 2 may together with N form a 5- or 6-membered heterocyclic group; R 3 is -C(=O)-R 4 or -SO 2 -R 5 (R 4 and R 5 are alkyl or phenyl which may have substituent group)]. n EXAMPLE: A charge generator of photosensitive material for electrophotography. It can be applied to a displaying material, sensor, or an optical recording medium such as optical disk. n PREPARATION: The compound of formula I can be produced by reacting 2mol of the m-phenylenediamine derivative of formula II with 1mol of 3,4-dihydroxy-3- cyclobutene-1,2-dione in an organic solvent e.g. an alcohol such as methanol, ethanol, propanol, etc. or an aromatic hydrocarbon such as benzene, toluene, etc. n COPYRIGHT: (C)1985,JPO&Japio |