Acid/Phosphide-Induced Radical Route to Alkyl and Alkenyl Sulfides and Phosphonothioates from Sodium Arylsulfinates in Water
作者:Ya-mei Lin、Guo-ping Lu、Gui-xiang Wang、Wen-bin Yi
DOI:10.1021/acs.joc.6b02459
日期:2017.1.6
can in situ generate arylsulfenyl radicals. These radicals have high reactivity to react with alkynes, alkenes, and H-phosphine oxides for the synthesis of alkyl and alkenyl sulfides and phosphonothioates. The control experiments and quantum calculations are also performed to gain insights into the generation mechanism of arylsulfenyl radicals. Notably, the chemistry is free of thiol odors, organic solvents
Novel and efficient synthesis of S-aryl/alkyl phosphinothioates from P(O)–H and aryl/alkyl sulfonylchlorides under metal- and base-free conditions is described. This reaction provides an alternative strategy for the construction of P–S–C bonds in moderate to excellent yields. Moreover, this method can be readily applied to gram-scale preparation.
A Robust Methodology for the Synthesis of Phosphorothioates, Phosphinothioates and Phosphonothioates
作者:David J. Jones、Eileen M. O'Leary、Timothy P. O'Sullivan
DOI:10.1002/adsc.202000059
日期:2020.4.27
A robust methodology for the synthesis of phosphorothioates, phosphinothioates and phosphonothioates, including those bearing low molecular weight S‐alkyl side‐chains, is presented. Application of the “caesium effect” in conjunction with the disulfide 3,3’‐dithiobis(propionitrile), which acts as a shelf‐stable sulfur source, avoids recourse to malodorous alkanethiols and toxic P−Cl precursors. A diverse
The reactions of α-alkoxyallylphosphine oxide ylides with silicon, sulphur, and phosphorus electrophiles
作者:Dipak K. Deychand、Alistair W. Hurray、Elizabeth Smeaton
DOI:10.1016/s0040-4039(00)85025-x
日期:——
Anions (2), derived from α-methoxyallylphosphine oxides (1), react with silicon, sulphur and phosphorus electrophiles in a highly regioselective fashion to give the products of γ-attack.