... The Journal of Organic ... State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China. J. Org. ... such as TiCl 4 , cerium(IV) ammonium nitrate (CAN), CuBr/H 2 O 2 , and Cu(ClO 4 ) 2 were employed for this reaction.(9) Organic oxidants could also ...