Cobalt(II) phthalocyanine was synthesized in situ within the cavities of a Y-zeolite and was characterized using different physicochemical techniques. Catalytic tests of hydrocarbon oxidation were carried out using iodosylbenzene and t-butylhydroperoxide as oxygen donors and chloroform as solvent. The formation of epoxides, ketones and alcohols was detected. It was observed that the encapsulated phthalocyanine is still active after 20 h of reaction while the free Co phthalocyanine loses its activity in a few minutes.
Paezmozo, E., Delmon, B., Gabriunas, N., Maggi, R., Acosta, D., & Ruiz, P. (1994). Selective Olefin Oxidation With Cobalt Phthalocyanine Encapsulated in Y-zeolite. Journal of Molecular Catalysis, 91(2), 251-258. https://doi.org/10.1016/0304-5102(94)00027-1 (Original work published 1994)