Phthalonitrile → Dichlorotitanium phthalocyanine

Participants

Reaction Conditions

Reaction Steps

In 100 g of α-chloronaphthalene, 5.0 g of o-phthalodinitrile and 2.0 g of titanium tetrachloride were stirred at 200° C. for 3 hours, followed by cooling to 50° C. The crystals precipitated were filtered to obtain a paste of dichlorotitanium phthalocyanine. Next, with stirring, this paste was washed with 100 ml of N,N-dimethylformamide heated to 100° C., and then repeatedly washed twice with 100 ml of 60° C. methanol to effect filtration. The paste thus obtained was further stirred in 100 ml of deionized water at 80° C. for 1 hour, followed by filtration to obtain blue oxytitanium phthalocyanine crystals. Yield: 4.3 g. Values of elemental analysis (C32H16N8TiO)

Provenance & Evidence