Epoxidation of Styrene with Aqueous Hypochlorite Catalyzed by a Manganese(III) Porphyrin Bound to Colloidal Anion‐Exchange Particles.

Epoxidation of styrene in aqueous sodium hypochlorite solution was catalyzed by the tetrasodium salt of 5,10,15,20-tetrakis (2,6-dichloro-3-sulfonatophenyl) porphinatomanganese(III) chloride (1). Manganese porphyrin 1 was more active bound to 60 nm diameter colloidal anion exchange particles than in aqueous solution: 0.12 mol% of 1 bound to four different types of particles gave 71-81% conversion of 1.2 mmol of styrene to styrene oxide with 1.5 mmol of hypochlorite in 1 h at room temperature