Selective and Scalable Synthesis of Trifluoromethanesulfenamides and Fluorinated Unsymmetrical Disulfides using a Shelf-Stable Electrophilic SCF<sub>3</sub>Reagent
作者:Roman Pluta、Magnus Rueping
DOI:10.1002/chem.201405654
日期:2014.12.22
and thiols using N‐(trifluoromethylthio)phthalimide under mild, metal‐free conditions is described. A series of trifluoromethanesulfenamides and unsymmetricaldisulfides is prepared from the corresponding aliphatic and aromatic amines and thiols in good yields. The reactions are operationally simple and tolerate a wide variety of functional groups. Trifluoromethanesulfenamides and disulfides belong to
Synthetic Uses of Thio- and Selenoesters of Trifluoromethylated Acids. 1. Preparation of Trifluoromethyl Sulfides and Selenides
作者:Thierry Billard、Nicolas Roques、Bernard R. Langlois
DOI:10.1021/jo980649a
日期:1999.5.1
Trifluorothioacetates (CF3CO-S-R, from (CF3CO)(2)O and thiols) as well as trifluoromethanethio-or trifluoromethaneselenosulfonates (CF3SO2-Y-R; Y = S, Se; from CF3SO2Na, RYYR, and Br-2) can be formally decarbonylated or desulfonylated, respectively, provided that they are photolyzed at 40 degrees C in the presence of 1 equiv of the corresponding disulfide or diselenide. Trifluoromethyl sulfides or selenides are obtained, and the added disulfide (or diselenide) is recovered after reaction. In such a way, S-(trifluoromethyl)cysteine derivatives can be obtained.