title: Synthesis of Sulfoximidoyl-Containing Hypervalent Iodine(III) Reagents and Their Use in Transition-Metal-Free Sulfoximidations of Alkynes.
abstract: Well-defined hypervalent iodine(III) reagents incorporating transferable sulfoximidoyl groups were obtained through ligand exchange reactions of methoxy(tosyloxy)iodobenzene (MTIB) with NH sulfoximines in good to excellent yields. The solid-state structure of a representative product was characterized by X-ray crystallography. Utilizing these reagents in synthesis provides a new, transition-metal-free approach towards N-alkynylated sulfoximines.
authors.affiliation: Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.
authors.forename: Han
authors.initials: H
authors.lastname: Wang
authors.affiliation: Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.
authors.forename: Ying
authors.initials: Y
authors.lastname: Cheng
authors.affiliation: Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Becker
authors.affiliation: Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Raabe
authors.affiliation: Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany. carsten.bolm@oc.rwth-aachen.de.
authors.forename: Carsten
authors.initials: C
authors.lastname: Bolm
keywords: alkynes; amidation; hypervalent iodine(III); sulfoximidation; sulfoximine