N-Bromosuccinimideand Iodine Catalyzed Highly Efficient Deoxygenation ofSulfoxides to Thioethers Using 3-Mercaptopropionic Acid under Mild ReactionConditions

Nickel phosphide nanoalloy catalyst for the selective deoxygenation of sulfoxides to sulfides under ambient H2 pressure

Exploring novel catalysis by less common, metal-non-metal nanoalloys is of great interest in organic synthesis. We herein report a titanium-dioxide-supported nickel phosphide nanoalloy (nano-Ni2P/TiO2) that exhibits high catalytic activity for the deoxygenation of sulfoxides. nano-Ni2P/TiO2 deoxygenated various sulfoxides to sulfides under 1 bar of H2, representing the first non-noble metal catalyst for sulfoxide deoxygenation under ambient H2 pressure. Spectroscopic analyses revealed that this high activity is due to cooperative catalysis by nano-Ni2P and TiO2.

Glycosylation via remote activation of anomeric leaving groups: development of 2-(2-propylsulfinyl)benzyl glycosides as novel glycosyl donors

New glycosyl donors with recyclable and regenerable leaving groups, which could be activated via remote mode, were designed for latent-active glycosylation.

A facile and highly efficient route to α-amino phosphonates via three-component reactions catalyzed by Mg(ClO4)2or molecular iodine

Three-component reactions of aldehydes, amines, and diethyl phosphite catalyzed by Mg(ClO4)2 or molecular iodine afforded the corresponding alpha-amino phosphonates in excellent yields under mild reaction conditions.

Molecular iodine: a highly efficient catalyst in the synthesis of quinolinesvia Friedländer annulation

A mild and efficient route for the synthesis of quinolines and polycyclic quinolines via Friedländer annulation, utilizing molecular iodine (1 mol%) as a new catalyst, is described.

Indium(I) Iodide-Promoted Cleavage of Diaryl Diselenides and Disulfides and Subsequent Condensation with Alkyl or Acyl Halides. One-Pot Efficient Synthesis of Diorganyl Selenides, Sulfides, Selenoesters, and Thioesters

Diphenyl diselenides and disulfides undergo facile cleavages by indium(I) iodide and the corresponding generated selenate and thiolate anions condense in situ with alkyl or acyl halides present in the reaction mixture. Thus, a simple, efficient, and general procedure has been developed for the synthesis of unsymmetrical diorganyl selenides, sulfides (thioethers), selenoesters, and thioesters by this one-pot reaction at room temperature.