title: Selective functionalization of a bis-silylene.
abstract: Functionalization of N-heterocyclic carbenes (NHCs) has an important influence on their stability, Lewis donor, and acceptor properties. In this study, we report on the selective functionalization of a four-membered N-heterocyclic bis-silylene (2,6-Ar2C6H3NSi:)2 (1) (Ar = 2,4,6-iPr3C6H2) with mono-oxygen sources N2O and Me3NO. Treatment of 1 with N2O results in the selective formation of mono-silylene (2,6-Ar2C6H3NSi(OH)2)(2,6-Ar2C6H3NSi:) (2) as a major product, along with a small amount of further oxidized product (2,6-Ar2C6H3NSi(OH)2)2 (3). Compound 2 is the first four-membered mono-silylene with a di-coordinate silicon atom.
authors.affiliation: Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany. rghadwal@uni-goettingen.de
authors.forename: Rajendra S
authors.initials: RS
authors.lastname: Ghadwal
authors.forename: Ramachandran
authors.initials: R
authors.lastname: Azhakar
authors.forename: Kevin
authors.initials: K
authors.lastname: Pröpper
authors.forename: Birger
authors.initials: B
authors.lastname: Dittrich
authors.forename: Michael
authors.initials: M
authors.lastname: John