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 …

Nonclassical Applications of closo-Carborane Anions: From Main Group Chemistry and Catalysis to Energy Storage

SP Fisher, AW Tomich, SO Lovera… - Chemical …, 2019‏ - ACS Publications
Classically closo-carborane anions, particularly [HCB11H11]− and [HCB9H9]−, and their
derivatives have primarily been used as weakly coordinating anions to isolate reactive …

Polymerization of polar monomers mediated by main-group Lewis acid–base pairs

M Hong, J Chen, EYX Chen - Chemical reviews, 2018‏ - ACS Publications
The development of new or more sustainable, active, efficient, controlled, and selective
polymerization reactions or processes continues to be crucial for the synthesis of important …

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 …

Stable cyclic carbenes and related species beyond diaminocarbenes

M Melaimi, M Soleilhavoup… - Angewandte Chemie …, 2010‏ - Wiley Online Library
The success of homogeneous catalysis can be attributed largely to the development of a
diverse range of ligand frameworks that have been used to tune the behavior of various …

Studies on the Mechanism of B(C6F5)3-Catalyzed Hydrosilation of Carbonyl Functions

DJ Parks, JM Blackwell, WE Piers - The Journal of organic …, 2000‏ - ACS Publications
The strong organoborane Lewis acid B (C6F5) 3 catalyzes the hydrosilation (using R3SiH)
of aromatic and aliphatic carbonyl functions at convenient rates with loadings of 1− 4%. For …

Pentafluorophenylboranes: from obscurity to applications

WE Piers, T Chivers - Chemical Society Reviews, 1997‏ - pubs.rsc.org
Pentafluorophenyl substituted boranes and borates are important as co-catalysts in
metallocene-based industrial processes for the homogeneous polymerization of olefins …

Synthesis, Properties, and Hydroboration Activity of the Highly Electrophilic Borane Bis(pentafluorophenyl)borane, HB(C6F5)21

DJ Parks, WE Piers, GPA Yap - Organometallics, 1998‏ - ACS Publications
Two reliable and efficient routes to bis (pentafluorophenyl) borane, 1, are described. A three-
step procedure uses the− C6F5 transfer agent Me2Sn (C6F5) 2 to produce the chloroborane …

Cationic silicon Lewis acids in catalysis

JCL Walker, HFT Klare, M Oestreich - Nature Reviews Chemistry, 2020‏ - nature.com
Silylium ions, or, to be more precise, donor-stabilized silylium-ion-like species, were once
only the domain of computational and structural chemists. This was mainly due to the …