28691-72-7Relevant articles and documents
Copper-catalyzed Regioselective Hydroaminations of Allylic Sulfones With Aromatic Amines
Kim, Kundo,Cho, Soohong,Park, Subin,Lee, Yunmi
, p. 699 - 708 (2021)
The highly regioselective copper-catalyzed hydroaminations of terminal or γ-substituted allylic sulfones with aromatic amines is described. The combination of an N-heterocyclic carbene-copper complex and KOt-Bu plays an important role in promoting selective amination under mild reaction conditions. This catalytic reaction tolerates a wide range of functional groups and enables the efficient syntheses of new and versatile functionalized β-amino sulfones in high yields (up to 98%) with >98% regioselectivity.
Highly efficient, catalytic bis addition reactions of allyl phenyl sulfone to vinyl sulfones
Felton, Greg A.N.,Bauld, Nathan L.
, p. 4841 - 4845 (2004)
Highly efficient, electrocatalytic additions of allyl phenyl sulfone to a variety of vinyl sulfones have been accomplished. The additions are catalyzed by electrogenerated bases derived from the reactant itself, and furnish 90-94% yields of highly polar molecules in which 1mol of allyl phenyl sulfone has added consecutively, selectively, and in a linear addition mode to 2mol of the vinyl sulfone. Essentially no products are observed which incorporate other than 2mol of the vinyl sulfone. An addition to a difunctional alkene, divinylsulfone, yields a novel cyclization product, albeit in more moderate yield (41%). The use of tetraalkylammonium salts, as opposed to lithium salts, as electrolytes has been found to provide electrogenerated bases of especially high reactivity.
Catalytic amide-mediated methyl transfer from silanes to alkenes in Fujiwara-Moritani oxidative coupling
Rauf, Waqar,Brown, John M.
supporting information; experimental part, p. 4228 - 4230 (2009/03/12)
(Chemical Equation Presented) Intramolecular assistance: Carbon-bound trimethylsilyl groups are activated intramolecularly by a carbonyl group and can participate in Heck reactions under oxidative conditions. Good stereoselectivities are obtained for a range of di-and trisubstituted alkenes (see example).
Enantioselective synthesis of chiral sulfones by Rh-catalyzed asymmetric addition of boronic acids to α,β-unsaturated 2-pyridyl sulfones
Mauleon, Pablo,Alonso, Ines,Rivero, Marta Rodriguez,Carretero, Juan C.
, p. 9924 - 9935 (2008/03/28)
(Chemical Equation Presented) A general and efficient method for the rhodium-catalyzed enantioselective catalytic conjugate addition of organoboronic acids to α,β-unsaturated sulfones is described. The success of the process relies on the use of α,β-unsat
