is established, which provides diaryl disulfides or diaryl monoselenides in moderate to good yields with excellent selectivities, respectively. Moreover, after sequential reduction and coupling with aryl/alkyl iodides in one pot, unsymmetrical monosulfides were obtained in good yields.
Dinitrogen Tetroxide Copper Nitrate Complex [Cu(NO<sub>3</sub>)<sub>2</sub>.N<sub>2</sub>O<sub>4</sub>] As a New Nitrosating Agent for Catalytic Coupling of Thiols via Thionitrite
作者:N. Iranpoor、H. Firouzabadi、M. A. Zolfigol
DOI:10.1080/00397919808005729
日期:1998.1
Abstract A catalytic and efficient oxidative coupling of thiols to disulfides is described using Cu(NO3)2.N2O4 as a new and efficient nitrosating agent in acetone at room temperature. The reaction is shown to occur immediately through the intermediacy of a thionitrite.
Hydrotalcite is an efficient catalyst for air oxidation of a variety of aromatic, aliphatic and alicyclic thiols in hexane, affording the corresponding disulfides in excellent to quantitative yields under mild and neutral conditions.
Oxidative Coupling of Thiols to Disulfides with Ti(IV) in the Presence of NaI under Air Atmosphere
作者:Behzad Zeynizadeh、Nasser Iranpoor
DOI:10.1002/jccs.200300118
日期:2003.8
Ti(IV) as TiCl3(O3SCF3) and TiO(O2CCF3)2 are used as efficient catalysts for oxidativecoupling of aliphatic, aromatic and heteroaromatic thiols to their disulfides in the presence of NaIunderairatmosphere.
Ti(IV) 作为 TiCl3(O3SCF3) 和 TiO(O2CCF3)2 被用作在空气气氛下在 NaI 存在下将脂肪族、芳香族和杂芳族硫醇氧化偶联为其二硫化物的有效催化剂。