Demetalation of Manganese Corroles

Manganese(Ⅲ) corroles bearing different meso-substituents 1-Mn,2-Mn,3-Mn,4-Mn have been synthesized and tested for the demetalation by using H2SO4/HAc and CH2Cl2 /SnCl2(HCl) method. The demetalation yields depend on the substituents of corrole macrocycle significantly. Demetalation yield of electron-deficient Mn(Ⅲ) corrole is higher than electron-rich Mn(Ⅲ) corrole when using H2SO4/HAc method. But when using CH2Cl2 /SnCl2 (HCl) reductive method,electron-rich Mn(Ⅲ) corrole gives higher demetalation yield.