Silylium Ions: From Elusive Reactive Intermediates to Potent Catalysts

HFT Klare, L Albers, L Süsse, S Keess… - Chemical …, 2021 - ACS Publications
The history of silyl cations has all the makings of a drama but with a happy ending. Being
considered reactive intermediates impossible to isolate in the condensed phase for …

Taming the cationic beast: novel developments in the synthesis and application of weakly coordinating anions

IM Riddlestone, A Kraft, J Schaefer… - Angewandte Chemie …, 2018 - Wiley Online Library
This Review gives a comprehensive overview of the most topical weakly coordinating
anions (WCAs) and contains information on WCA design, stability, and applications. As an …

Reactive p-block cations stabilized by weakly coordinating anions

TA Engesser, MR Lichtenthaler, M Schleep… - Chemical Society …, 2016 - pubs.rsc.org
The chemistry of the p-block elements is a huge playground for fundamental and applied
work. With their bonding from electron deficient to hypercoordinate and formally hypervalent …

The Facile Preparation of Weakly Coordinating Anions: Structure and Characterisation of Silverpolyfluoroalkoxyaluminates AgAl(ORF)4, Calculation of the Alkoxide …

I Krossing - Chemistry–A European Journal, 2001 - Wiley Online Library
Purified LiAlH4 reacts with fluorinated alcohols HORF to give LiAl (ORF) 4 (RF=− CH (CF3)
2, 2 a;− C (CH3)(CF3) 2, 2 b;− C (CF3) 3, 2 c) in 77 to 90% yield. The crude lithium …

H+, CH3+, and R3Si+ Carborane Reagents: When Triflates Fail

CA Reed - Accounts of Chemical Research, 2010 - ACS Publications
For decades, triflic acid, methyl triflate, and trialkylsilyl triflate reagents have served synthetic
chemistry well as clean, strong electrophilic sources of H+, CH3+, and R3Si+, respectively …

α-Agostic interactions and olefin insertion in metallocene polymerization catalysts

RH Grubbs, GW Coates - Accounts of chemical research, 1996 - ACS Publications
In the 40 years since the discovery of transition metal catalysts for olefin polymerization by
Ziegler and Natta, 1, 2 a substantial amount of research has been directed toward …

<?ACS-CT-START-Insert ?>Update 1 of: <?ACS-CT-END-Insert ?>Chemistry of the Carba-closo-dodecaborate(−) Anion, CB11H12

… <? ACS-CT-START-Insert?> Douvris<? ACS … - Chemical …, 2013 - ACS Publications
Polyhedral boranes and carborane clusters are characterized by delocalized electron
deficient bonding, meaning that there are too few valence electrons for bonding to be …

Chemistry of the Carba-closo-dodecaborate(−) Anion, CB11H12-

S Körbe, PJ Schreiber, J Michl - Chemical reviews, 2006 - ACS Publications
Polyhedral borane and carborane clusters are characterized by delocalized electron-
deficient bonding, meaning that there are too few valence electrons for bonding to be …

Hydrogen-and fluorine-bridged disilyl cations and their use in catalytic C− F activation

R Panisch, M Bolte, T Müller - Journal of the American Chemical …, 2006 - ACS Publications
The hydrogen-bridged disilyl cation 6 with an 1, 8-naphthalenediyl backbone was
synthesized and was characterized by NMR spectroscopy and X-ray crystallography …

Hydrodefluorination and other hydrodehalogenation of aliphatic carbon− halogen bonds using silylium catalysis

C Douvris, CM Nagaraja, CH Chen… - Journal of the …, 2010 - ACS Publications
Trialkylsilylium cation equivalents partnered with halogenated carborane anions (such as
Et3Si [HCB11H5Cl6]) function as efficient and long-lived catalysts for hydrodehalogenation …