1-tert-butyl-4,4,4-tris(dimethylamino)-2,2-bis[tris(dimethylamino)-phosphoranylidenamino]-2Λ54Λ5-catenadi(phosphazene) in DMF (N,N-dimethyl-formamide); hexane T=20°C; 4 h;

3-chloro-benzenecarboperoxoic acid in dichloromethane 0.5 h;