The catalytic performance of Mn-tetraarylporphyrins in the highly selective oxidation of primary aromatic amines to azo compounds by Bu4NHSO5

Manganese protoporphyrin IX reconstituted myoglobin capable of epoxidation of the CC bond with Oxone®

“…Mn porphyrins are well known catalysts in oxygen-atom transfer (OAT), [6][7][8][9][10] hydrogen-atom transfer (HAT), 57,58 and electron transfer (ET) reactions, 59,60 and Mn V -oxo or/and [Mn IV vO] +• species were proposed as active intermediates. Since the reaction of Oxone ® and Mn His3 Mb could generate more active Mn-oxo species, it is very important to investigate the reactivity toward oxygen atom transfer reactions.…”

Site-Selective Oxidative Coupling Reaction of Diamines toward Aminoazo Compounds

“…As a kind of common industrial material, azo compounds are extensively used as dyes, pigments, drugs, and energetic materials. − While most monoamines can be easily coupled to azo products without worrying much about byproducts, the oxidative coupling of polyamines not only forms multiple intermediates and excessive oxidation byproducts but also may lead to a variety of isomers (Figure A), − thus creating formidable barriers for a simple and low-cost synthesis of aminoazo compounds. Therefore, developing a direct synthetic route for a selective oxidative coupling of polyamines can efficiently increase the construction speed, allowing for easier industrial production, and is thus considered both challenging and rewarding …”