The highly active water soluble bifunctional catalyst of porphyrazinato zinc(II) ([Zn(2,3-tmtppa)](MeSO₄)₄) in which tmtppa stands for tetramethylated tetrapyridino porphyrazine was applied for cycloaddition reaction of CO₂ into epoxides to obtain cyclic carbonates. It seems that our catalyst can act as an efficient phase transfer agent because of the presence of tetra positive groups in its structure which increased catalyst solubility in water. Accordingly, the CO₂ fixation reaction was performed in water utilizing cheap, simple and commercially available potassium iodide co-catalyst instead of expensive quaternary onium salts (as co-catalyst) because of having the quaternized parts in the porphyrazine skeleton. The mentioned homogeneous catalytic system was adaptable to CO₂ insertion into aliphatic, aromatic and functional epoxides efficiently and selectively under mild reaction conditions. Furthermore, our catalyst system was easily recovered and reused in at least three cycles without any decrease of catalytic activity.

将其中tmtppa代表四甲基化吡啶并四氮杂卟啉的高活性卟啉锌（II）（[Zn（2,3-tmtppa）]（MeSO ₄）₄）水溶性双功能催化剂用于将CO ₂环化成环氧化物以得到环状碳酸盐。似乎我们的催化剂可以用作有效的相转移剂，因为在其结构中存在四个正基团，这增加了催化剂在水中的溶解度。因此，CO ₂由于在卟啉嗪骨架中具有季铵化的部分，因此使用便宜，简单且可商购的碘化钾助催化剂代替昂贵的季鎓盐（作为助催化剂）在水中进行固定反应。所提及的均相催化体系适合于在温和的反应条件下有效且选择性地将CO ₂插入脂族，芳族和功能性环氧化物中。此外，我们的催化剂体系很容易被回收并在至少三个循环中重复使用，而催化活性没有任何下降。