Synthesis of Sulfonimidamides from Sulfenamides via an Alkoxy‐amino‐λ
<sup>6</sup>
‐sulfanenitrile Intermediate
作者:Edward L. Briggs、Arianna Tota、Marco Colella、Leonardo Degennaro、Renzo Luisi、James A. Bull
DOI:10.1002/anie.201906001
日期:2019.10
few operationally simple methods for their preparation. Here, the synthesis of NH-sulfonimidamides is achieved directly from sulfenamides, themselves readily formed in one step from amines and disulfides. A highly chemoselective and one-pot NH and Otransfer is developed, mediated by PhIO in iPrOH, usingammoniumcarbamate as the NH source, and in the presence of 1 equivalent of acetic acid. A wide
Synthesis and characterization of oxo-vanadium complex anchored onto SBA-15 as a green, novel and reusable nanocatalyst for the oxidation of sulfides and oxidative coupling of thiols
Abstract The present work describes the synthesis of a new oxo-vanadium complex immobilized on SBA-15 nanostructure as an efficient catalyst for oxidation of sulfides and oxidative coupling of thiols. Characterization of the resultant AMPD@SBA-15 nanostructure was performed by various physico-chemical techniques such as Fourier transform infrared spectroscopy, transmission and scanning electron microscopies
thiols with (diacetoxyiodo)benzene (DIB) has been explored in the preparation of symmetrical disulfides and sulfenamides. Disulfides can be produced in excellent yields (75–95 %) upon treatment of thiols with DIB. The reaction was complete in less than five minutes at room temperature. Aliphatic, aromatic, and heteroaromatic thiols are compatible with this transformation. Moreover, heteroaromatic disulfides
A new redox reaction of thiols with disulfide dication salt, 1,5-dithioniabicyclo[3.3.0]octane bis(trifluoromethanesulfonate), under mild conditions gave the corresponding disulfides in good yields together with 1,5-dithiacyclooctane.
Amino acid and water-driven tunable green protocol to access S–S/C–S bonds via aerobic oxidative coupling and hydrothiolation
作者:Amit Shard、Rajesh Kumar、Saima Saima、Nidhi Sharma、Arun K. Sinha
DOI:10.1039/c4ra02909g
日期:——
Arginine in conjunction with water has been employed as an effective and recyclable organocatalyst for oxidative coupling of thiophenols and hydrothiolation of alkynes.