| 摘要 |
NEW MATERIAL:A compd. of the formula (wherein L1-3 have each a structure of formula II or III and at least one of them has a structure of formula III; X1-2 are each a 4-12C alkoxy; Y is a 4-12C alkyl; M is a metal of the 4th or the 5th period of the group VIII of the periodic table, Cu, VO or InCl). USE:Near-infrared absorber. PREPARATION:A phthalonitrile derivative of formula IV and a dicyanonaphthalene derivative of formula V are reacted with a metal compd. (e.g. CoCl2) in an org. solvent (e.g. trichlorobenzene) in the presence of a base (e.g. diazabicycloundecene) at 100-200 deg.C. |
