Polymeric schiff's base chelates and their precursors, 7. Dioxygen binding and catalytic oxidation of 2,6‐di‐<i>tert</i>‐butylphenol

Abstract

Abstract Dioxygen binding and catalytic oxidation of 2,6‐di‐ tert ‐butylphenol( 9 ) were investigated by employing various low molecular chelates ( 1 and 2 ), covalently or coordinatively bound polymeric chelates ( 3, 4, 5, 6 , and 7 ), and polymeric Schiff's base chelates ( 8 ). Particularly the covalently bound polymeric chelates 3 and 4 were found to exhibit activities similar to low molecular 1 in regard to dioxygen binding. It is suggested that these polymers can reversibly form mononuclear superoxo‐complexes. In the oxidation of 9 the covalently bound polymeric chelates 3 – 5 exhibit good activity which does not decrease after repeated use.