Stabilization of a Silaaldehyde by its η(2) Coordination to Tungsten

Angewandte Chemie
Tetsuya FukudaHiromi Tobita

Abstract

Treatment of pyridine-stabilized silylene complexes [(η(5)-C5 Me4R)(CO)2(H)W=SiH(py)(Tsi)] (R = Me, Et; py = pyridine; Tsi = C(SiMe3)3) with an N-heterocyclic carbene (Me)I(i)Pr (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) caused deprotonation to afford anionic silylene complexes [(η(5)-C5Me4 R)(CO)2W=SiH(Tsi)][H(Me)I(i)Pr] (R = Me (1-Me); R = Et (1-Et)). Subsequent oxidation of 1-Me and 1-Et with pyridine-N-oxide (1 equiv) gave anionic η(2)-silaaldehydetungsten complexes [(η(5)-C5Me4R)(CO)2W{η(2)-O=SiH(Tsi)}][H(Me)I(i)Pr] (R = Me (2-Me); R = Et (2-Et)). The formation of an unprecedented W-Si-O three-membered ring was confirmed by X-ray crystal structure analysis.

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Citations

Jan 14, 2017·Inorganic Chemistry·Nasrina ParvinHerbert W Roesky
Apr 29, 2016·Chemistry : a European Journal·M Angeles AlvarezMiguel A Ruiz
Jul 4, 2017·Angewandte Chemie·Isabel Alvarado-BeltranTsuyoshi Kato
Nov 18, 2018·Chemistry : a European Journal·Debotra SarkarShigeyoshi Inoue
Jan 17, 2020·Angewandte Chemie·Gizem DübekShigeyoshi Inoue
Mar 27, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Takako MuraokaKeiji Ueno
Mar 25, 2020·Chemical Science·Jeffrey S Price, David J H Emslie
Jul 15, 2020·Angewandte Chemie·Ying Kai Loh, Simon Aldridge
Aug 7, 2020·Chemistry : a European Journal·Catherine Weetman
Aug 14, 2020·Journal of the American Chemical Society·Debotra SarkarShigeyoshi Inoue
Aug 8, 2017·Inorganic Chemistry·Carsten EisenhutShigeyoshi Inoue
Jul 30, 2019·Journal of the American Chemical Society·Dominik ReiterShigeyoshi Inoue
Dec 22, 2020·Journal of the American Chemical Society·Priyabrata GhanaAlexander C Filippou
Aug 28, 2021·Chemical Reviews·Matthew M D RoyEric Rivard

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