Reduction of Sulfonic Acids and Related Organosulfur Compounds with Triphenylphosphine–Iodine System
作者:Shigeru Oae、Hideo Togo
DOI:10.1246/bcsj.56.3802
日期:1983.12
excess iodine, however, these aliphatic sulfur compounds are converted eventually to the corresponding alkyliodides. The relativereactivities of these sulfonyl derivatives in the reaction with the triphenylphosphine–iodine system are the following. Aromatic series: ArSO2Cl, ArSO2SAr′>ArSO2H>ArSO3R>ArSO3−HNBu3+ (or PyH+)>ArSO3H>ArSO2SO2Ar>>ArSO2CH2C(CH3)3, ArSO3Ar′. Aliphatic series: RSO2Cl, RSO2SR′,
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.
Oxidation of thiols with molecular oxygen catalyzed by cobalt(ii) phthalocyanines in ionic liquidElectronic supplementary information (ESI) available: experimental. See http://www.rsc.org/suppdata/cc/b3/b305888c/
作者:S. M. S. Chauhan、Anil Kumar、K. A. Srinivas
DOI:10.1039/b305888c
日期:——
An efficient procedure for catalyst solubility, recycling and easy product isolation in oxidation of thiols to disulfides with molecular oxygen catalyzed by cobalt(II) phthalocyanines dissolved in ionicliquid at room temperature is reported.
报道了在室温下溶解在离子液体中的钴 (II) 酞菁催化硫醇氧化为二硫化物的过程中催化剂溶解、回收和易于产物分离的有效程序。
Simple and Selective Oxidation of Thiols to Disulfides with Dimethylsulfoxide Catalyzed by Dichlorodioxomolybdenum(VI)
作者:Roberto Sanz、Rafael Aguado、María R. Pedrosa、Francisco J. Arnáiz
DOI:10.1055/s-2002-28520
日期:——
Selective and quantitative conversion of thiols to disulfides was effected by dimethyl sulfoxide under mild conditions catalyzed by dichlorodioxomolybdenum(VI).
在二氯二氧钼 (VI) 催化的温和条件下,二甲亚砜可将硫醇选择性和定量地转化为二硫化物。
Dinitrogen Tetroxide Impregnated Charcoal (N<sub>2</sub>O<sub>4</sub>/Charcoal): Selective Oxidation of Thiols to Disulfides or Thiosulfonates
Selective oxidation of thiols to disulfides (RSSR) was performed by using catalytic amounts of dinitrogentetroxide/charcoal in chloroform at r.t. while the reaction of thiols with four molar equivalents of the reagent in dichloromethane afforded thiosulfonates (RSO2SR) with excellent yields.