title: From elusive thio- and selenosilanoic acids to copper(I) complexes with intermolecular Si=E → Cu-O-Si coordination modes (E = S, Se).
abstract: The facile synthesis of the first stable selenosilanoic acid-base adduct LSi(=Se)OH(dmap) 3 (L = CH[C(Me)NAr]2, Ar = 2,6-iPr2C6H3, dmap = 4-dimethylaminopyridine), the heavier analogue of the thiosilanoic acid adduct LSi(=S)OH(dmap) 1, is reported. Both adducts 1 and 3 react readily with MesCu (Mes = 2,4,6-trimethylphenyl) to form the novel dimeric Cu(I) complexes [LSi(=E)OCu]2 (4: E = S; 5: E = Se) with unprecedented intermolecular Si=E → Cu-O-Si coordination modes. The latter are efficient pre-catalysts for the Cu(I)-mediated aziridination of styrene with PhI=N(Ts) (Ts = tosyl).
authors.affiliation: Technische Universität Berlin, Department of Chemistry, Metalorganics and Inorganic Materials, Sekr. C2, Strasse des 17. Juni 135, 10623 Berlin, Germany.
authors.forename: Gengwen
authors.initials: G
authors.lastname: Tan
authors.forename: Yun
authors.initials: Y
authors.lastname: Xiong
authors.forename: Shigeyoshi
authors.initials: S
authors.lastname: Inoue
authors.forename: Stephan
authors.initials: S
authors.lastname: Enthaler
authors.forename: Burgert
authors.initials: B
authors.lastname: Blom
authors.forename: Jan D
authors.initials: JD
authors.lastname: Epping
authors.forename: Matthias
authors.initials: M
authors.lastname: Driess
mesh_terms: D003300:Copper / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D016566:Organoselenium Compounds / Q000737:chemistry*; D017646:Organosilicon Compounds / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D016566:Organoselenium Compounds; D017646:Organosilicon Compounds; D003300:Copper; D010100:Oxygen; D012825:Silicon