Samir Z. Zard

TL;DR: In the present brief overview, examples taken from the authors' laboratory will serve to illustrate the strategic impact of radical-based approaches on synthetic planning, and transformations involving nitrogen-centred radicals, electron transfer from metallic nickel and the reversible degenerative exchange of xanthates will be presented and discussed.

TL;DR: In this article, a new soluble polymer containing a Wang type linker was synthesized and the radical addition of xanthates onto olefins was performed with this new polymer in comparison with a classical Wang resin.

TL;DR: In this article, S-propargylic xanthates derived from secondary alcohols can be easily converted to their corresponding olefins in good yields in the presence of collidinium trifluorosulfonate salt.

TL;DR: Geminal (pyridine-2-thiyl) phenylsulphones, obtained by decarboxylative radical addition of O-acyl derivatives of N-hydroxy- 2-thiopyridone onto phenyl vinyl sulphone, undergo a wide variety of further transformations when subjected to sodium telluride or to organoaluminum reagents as discussed by the authors.

TL;DR: In this article, a sigmoid-ropic rearrangement to the corresponding allene and ring closure to a novel betaine is described. But this is not the case for S-Propargyl xanthates.