This review is dedicated to the chemistry of stable and isolable species that bear two lone
pairs at the same C center, ie, geminal dianions, stabilized by main group elements. Three …

Several new C–H-activated ruthenium catalysts for Z-selective olefin metathesis have been
synthesized. Both the carboxylate ligand and the aryl group of the N-heterocyclic carbene …

While the fundamental series of [2+ 2] cycloadditions and retro [2+ 2] cycloadditions that
make up the pathways of ruthenium-catalysed metathesis reactions is well-established, the …

The correlation between rapid initiation and rapid decomposition in olefin metathesis is
probed for a series of fast-initiating, phosphine-free Ru catalysts: the Hoveyda catalyst HII …

Ring-closing metathesis (RCM) has become indispensable in organic synthesis for both
academic investigations and industrial applications. This review provides an overview of …

Examined herein is the basis for the outstanding metathesis productivity of leading cyclic
alkyl amino carbene (CAAC) catalysts relative to their important N-heterocyclic carbene …

The synthesis of a ruthenium complex containing an N-heterocylic carbene (NHC) and a
mesoionic carbene (MIC) is described wherein addition of a Brønsted acid results in …

A detailed exploration of the three proposed mechanisms (associative, dissociative, and
interchange) for the activation of Grubbs–Hoveyda-type precatalysts is performed, using …

Density functional theory calculations accounting for dispersion, thermochemical, and
continuum solvent effects have been applied to study the metathesis of ethyl vinyl ether …

This account describes the discovery and development of efficient electron-withdrawing
group activated Hoveyda–Grubbs catalysts, including a nitro-substituted catalyst and their …