Green Baeyer–Villiger oxidation with hydrogen peroxide: Sn[N(SO ₂ C ₈ F ₁₇ ) ₂ ] ₄ as a highly selective Lewis acid catalyst in a fluorous biphase system

In a fluorous biphasic catalytic system for Baeyer–Villiger oxidation of cyclic ketones, it was shown that Sn[N(SO2C8F17)2]4 catalyst can give an excellent yield and selectivity with the green, safe and cheap 35% aqueous hydrogen peroxide as the oxidant. Furthermore, it was also found that the catalyst can be completely recovered and reused without loss of its activity in the fluorous immobilized phase.