Synthesis and Uses of Organogold Compounds

Abstract

Introduction Synthesis of σ‐Bonded Organogold Complexes Homo‐ and Heterometallic Gold Clusters Containing Gold–Carbon Bonds Synthesis and Properties of Alkene, Alkyne, Carbene and Related Complexes of Gold

A briefing on aurophilicity

“…Classical examples are the dithiocarbamates (1) 13 and dialkyldithiophosph(on)ates (3) 15 with sulfur donor atoms, di(phosphino)-methanes (13a), 66,67 -methanides (13e) 34 and -amines (13f) 38 with phosphorus donor atoms, amidinates with nitrogen donor atoms (21), 68 and phosphonium bis(methylides) with carbon donor atoms (2). 69,70 Similar arrangements are observed with mixed donor atoms, as in methylene(thio)phosphinates ( 22) 70,71 or with 2-diorganophosphinopyridines (23), 72 and with dimethylaminomethylphenyl (24a), 73 2-diorganophosphinomethylphenyl (24b) 74 and thiouracylate ligands (24c). 75 This family of compounds is presently the largest collection of species which show all characteristics of aurophilic bonding (ease of formation, high thermal stability, reluctance to undergo polymerization, short transannular contacts, facile formation of transannular Au-Au bonds upon oxidation, short Au-Au contacts, inward-bent X-Au-X axes etc.).…”

A Dinuclear Mechanism Implicated in Controlled Carbene Polymerization

“…Hence, we report an efficient, controlled, and quasi-living polymerization of EDA and block-co-polymerization of EDA and TFEDA enabled by a dinuclear mechanism. Although dinuclear polymerization of olefins is well-precedented, 3 as is the existence of bridging carbenes, 39–44 dinuclear reactivity in carbene polymerization has no precedent in homogeneous catalysis. The mechanistic insights in this report, e.g., the ancillary nature of one of the carboxylates, and the stabilization of reactive intermediates by the two Pd centers, 45–49 will not only advance initiator design for carbene polymerization, but will also readily translate to catalysis as broadly defined.…”

Synthese Und Untersuchung Des Synthesepotentials Neuartiger Ethen- Phosphane

“…Phosphan-Gold ( I ) -Komplexe Gold(I)-Komplexe von Phosphanliganden sind altbekannte und in zahlreichen Varianten auftretende Verbindungen (57,58).…”