Copper-Catalyzed Intermolecular Difunctionalization of Styrenes with Thiosulfonates and Arylboronic Acids via a Radical Relay Pathway
作者:Qingjin Liang、Patrick J. Walsh、Tiezheng Jia
DOI:10.1021/acscatal.9b04887
日期:2020.2.21
intermolecular difunctionalization strategy of styrenes with methyl thiosulfonates and arylboronic acids has been developed. This method provides an efficient and straightforward avenue to a broad range of 2,2-diarylethyl sulfone derivatives from readily available methyl thiosulfonates and commercially available styrene and arylboronic acid derivatives. The diverse substrate scope attests to the high
practical method to access unsymmetrical and symmetricalthiosulfonates in moderate to excellent yields has been developed through NBS‐promotedsulfenylation of sulfinates with disulfides. The present process enables the use of two RS in RSSR and shows broad functional group tolerance, which represents an atom‐economical and practical procedure for the synthesis of thiosulfonates. A plausible mechanism
Rh(<scp>ii</scp>)/phosphine-cocatalyzed synthesis of dithioketal derivatives from diazo compounds through simultaneous construction of two different C–S bonds
作者:Changqing Rao、Shaoyu Mai、Qiuling Song
DOI:10.1039/c8cc01656a
日期:——
Rhodium(II)/phosphine-cocatalyzed bis-sulfuration of α-diazocarbonyl compounds using thiosulfonates as the sulfenylating agent, which provided two sulfur-containing moieties, was developed via simultaneous inter- and intra-molecular C–S bond formation. This novel protocol provides a rapid syntheticroute to dithioketal derivatives in moderate to good yields in an atom-economic process. The transformation
Thiosulfonates were prepared by the iodine oxidative sulfenylation of sulfinates with various disulfides in good yields both in the presence and absence of solvent. One of the important biological applications of sulfenylation is the reaction of cyclic disulfides.
Under solvent-free conditions, various unsymmetrical benzoyldisulfides and symmetrical novel biscarbonyldisulfides were easily prepared in good yields at room temperature by the mixing of thiosulfonates with thiocarboxylic S-acids in the absence or presence of an amine.