| 摘要 |
NEW MATERIAL:A compound of formula I (wherein R1 and R6-7) are each H, linear or branched alkyl, cyclohexylalkyl, haloalkyl, cyanoalkyl, alkoxycarbonylalkyl, alkenyl, aralkyl or the like, R2-5 are each H, linear or branched alkyl, cycloalkyl(oxy), linear or branched alkoxy, alkoxyalkyl, alkoxyalkoxy, aralkyl or halogen, or groups R2 and R3 or groups R4 and R5 may be combined with each other to form a ring, X is H, halogen, alkoxy or OH, l is 1-4, m is 0-5, n is 0-14, 2l+m+n=16, and M is a metal atom or a metal oxide). EXAMPLE:A compound of formula II. USE:A phthalocyanine pigment having an absorption in the near infrared region of 700-1,500nm and useful for semiconductor laser beam used in compact discs, liquid crystal display devices, etc. PREPARATION:A compound obtained from perchloro copper phthalocyanine in the presence of a base in an aprotic solvent and o-aminothiophenol is reacted with an alkyl halide in the presence of a base in a polar solvent. |
