ChemInform Abstract: Niobium(V) Chloride Catalyzed Oxidation of Dithioacetals with 30% Hydrogen Peroxide: A Concise Preparation of Bissulfonylmethylene Compounds. Issue 38 (30th August 2013) - Kirihara, Masayuki; Goto, Takumi; Noguchi, Takuya; Suzuki, Michitaka; Ishizuka, Yuki; Naito, Sayuri