| 摘要 |
NEW MATERIAL:A compound of formula I (R and R' are each aryl, methyl, ethyl, propyl, or butyl). EXAMPLE:3-chloro-4-(beta',beta'-dicyanovinyl)-N,N-dimethylaniline. USE:Yellow colored titled matter capable of sublimation; which is capable of transfer recording of adequate color concentration without heavy loading on heat-sensitive recording head because of large molecular extinction. Suitable for obtaining full-color by the combination with fuchsine and cyan coloring matters. PREPARATION:An aniline of formula II is made to react, in DMF, with phosphorus oxychloride to form an aldehyde of formula III, which is then made to react with malonitrile. |
