A novel method for metal‐free oxothiolation of ynamides to construct oxazolidine‐2,4‐diones bearing sulfur‐substituted quaternary carbonatoms has been developed. It represents a rare C−O bond cleavage of ynamides, as well as a facile and tandem approach for the formation of C−O, C−S, and C−Cl bonds. This redox‐neutral protocol can be applied to the synthesis of multisubstituted oxazolidine‐2,4‐diones
Dibenzenesulfenamidyl radicals (2) were generated by the oxidation of dibenzenesulfenamides (1), and their ESR and visible spectra were measured. The ESR spectra were split into a 1 : 1 : 1 triplet by the interaction with the nitrogen nucleus (aN=11.26–11.49 G); in some spectra, each of the triplet was further split by the interaction with the ring protons (ao−H=ap−H=0.48–0.70, am−H=0.18–0.22 G). The
[EN] SYNTHESIS OF VORTIOXETINE VIA (2-(PIPERAZINE-1 -YL)PHENVL)LITHIUM INTERMEDIATES<br/>[FR] SYNTHESE DE VORTIOXETINE PAR DES INTERMEDIAIRES DE (2-(PIPERAZINE-1-YL)PHENYL)LITHIUM
申请人:LEK PHARMACEUTICALS
公开号:WO2015079018A1
公开(公告)日:2015-06-04
The present invention provides a new synthetic process for the production of 1-(2-((2,4-dimethylphenyl)thio)phenyl)piperazine (vortioxetine), a drug for the treatment of depression and anxiety, which is conducted via (2-(piperazine-1-yl)phenyl)lithium intermediates.
Synthesis of Perfluoro Alkyl/Alkenyl Aryl Sulfide: C−S Coupling Reaction Using Hexafluoropropylene Dimer (HFPD) as a Building Block
作者:Yu An、Ji‐Jun Zeng、Xiao‐Bo Tang、Bo Zhao、Sheng Han、Zhi‐Qiang Yang、Wei Zhang、Jian Lu
DOI:10.1002/ejoc.202301150
日期:2024.1.2
Hexafluoropropylene dimer (HFPD) was directly employed to synthesize perfluoro alkyl/alkenyl aryl sulfides. A variety of thiophenol substrates were conveniently chlorinated by N-chlorosuccinimide (NCS); afterwards, C6 perfluoroalkyl was introduced in the presence of cesium fluoride (Path A). Moreover, the C6 perfluoroalkenyl was directly constructed by inorganic base-catalyzed nucleophilic substitution