作者:Alex S. Deeming、Claire J. Russell、Alan J. Hennessy、Michael C. Willis
DOI:10.1021/ol403122a
日期:2014.1.3
The addition of Grignardreagents or organolithiumreagents to the SO2-surrogate DABSO generates a diverse set of metal sulfinates, suitable for direct conversion to sulfone products. The metal sulfinates can be trapped in situ with a wide range of C-electrophiles, including alkyl, allyl, and benzyl halides, epoxides, and (hetero)aryliodoniums.
Palladium(II)-Catalyzed Synthesis of Sulfinates from Boronic Acids and DABSO: A Redox-Neutral, Phosphine-Free Transformation
作者:Alex S. Deeming、Claire J. Russell、Michael C. Willis
DOI:10.1002/anie.201508370
日期:2016.1.11
redox‐neutral palladium(II)‐catalyzed conversion of aryl, heteroaryl, and alkenyl boronicacids into sulfinate intermediates, and onwards to sulfones and sulfonamides, has been realized. A simple Pd(OAc)2 catalyst, in combination with the sulfur dioxide surrogate 1,4‐diazabicyclo[2.2.2]octane bis(sulfur dioxide) (DABSO), is sufficient to achieve rapid and high‐yielding conversion of the boronicacids into the
Polyethylene glycol (PEG) 4000 catalysed regioselective nucleophilic ring opening of oxiranes - A new and convenient synthesis of β-hydroxy sulfone and β-hydroxy sulfide
作者:A.K. Maiti、P. Bhattacharyya
DOI:10.1016/s0040-4020(01)89588-0
日期:1994.1
Oxiranes and sodium p-toluene sulfinate salt react smoothly in a regioselective manner in the presence of PEG4000 to furnish β-hydroxy sulfone and β-hydroxysuifide. The reaction was extended for the preparation of alkylsulfones and β-oxosulfones from alkylhalide and β-oxohalide respectively.
66. Reactions of ethylene oxides. Part II. Reactions with thioamides, thiols, and inorganic sulphur salts
作者:C. C. J. Culvenor、W. Davies、N. S. Heath
DOI:10.1039/jr9490000278
日期:——
Bimolecular Eliminations in Conformationally Biased Systems Containing Acidic β Protons. The 2-(<i>p</i>-Tolylsulfonyl)-4-<i>t</i>-butylcyclohexyl Sulfonates