2019 年 44 巻 3 号 p. 95-99
The preparation of phthalocyanines are difficult because of their poor reactivity of reactants. In order to improve the reactivity, safety, and green technology in the preparation of the phthalocyanine (4-tBuPcH2), several types of ionic liquids were applied as reaction medium. In the case of using [C2-OHm2im][Br] as a reaction media, 4-tBuPcH2 was obtained in the highest yield (38%). These results suggested that the hydroxy groups, anion species, and stability of cations of ionic liquids are important to synthesis of 4-tBuPcH2. In addition, [C2-OHm2im][Br] was reused without any loss of its catalytic activity.