| 摘要 |
PROBLEM TO BE SOLVED: To obtain anα-tetrasubstd. phthalocyanine in a high yield by reacting a 3-substd. phthalonitrile with a compd. selected from among ammonia, urea, ammonium carbamate, formamide, and ethyl carbamate in an aliph. alcohol in the presence of an alkoxide and reacting the resultant diiminoisoindoline compd. with VCl3 . SOLUTION: A 3-substd. phthalonitrile of formula I is reacted with a compd. selected from among ammonia, urea, ammonium carbamate, formamide, and ethyl carbamate in a 5-8C aliph. alcohol in the presence of e.g. sodium methoxide to form a diiminoisoindoline compd. of formula II. VCl3 is added to the reaction system, which is then subjected to cyclization at 90-150 deg.C, thus giving the objectiveα-tetrasubstd. phthalocyanine of formula III (wherein X is a 1,1,1,3,3,3-hexafluoro-2-phenyl-2-propoxy group; and the numbers, 1-16, denote the positions of carbon atoms).
|
