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Structure and reactivity of "unusual" N-heterocyclic carbene (NHC) palladium complexes synthesized from imidazolium salts.
TLDR
The binding mode of the NHC to Pd is shown to substantially affect the catalytic behavior of the palladium complexes in cross-coupling reactions. Expand
Enantioselective Cyclopropanation of Allylic Alcohols with Dioxaborolane Ligands: Scope and Synthetic Applications
A very effective chiral controller has been found for the conversion of allylic alcohols into the corresponding enantiomerically enriched cyclopropanes using bis(iodomethyl)zinc. A variety of chiral,Expand
N-tosyloxycarbamates as reagents in rhodium-catalyzed C-H amination reactions.
Metal nitrenes for use in C-H insertion reactions were obtained from N-tosyloxycarbamates in the presence of an inorganic base and a rhodium(II) dimer complex catalyst. The C-H amination reactionExpand
Multicatalytic processes using diverse transition metals for the synthesis of alkenes.
TLDR
A series of cascade processes for the synthesis of alkenes from alcohols is described, and an oxidation-methylenation-RCM process that involves up to three different transition metal catalysts in the same vessel is presented. Expand
Iridium Complexes in Olefination Reactions
Iridium complexes were found to catalyze the olefination of aldehydes in the presence of triphenylphosphine with both ethyl diazoacetate and trimethylsilyldiazomethane. Conjugated esters wereExpand
With Ultrasonic Irradiation
Stereoselective cyclopropanation reactions.
TLDR
This review will focus mainly on the new methods that have appeared in the literature since 1989 for stereoselective cyclopropanation reactions from olefins: the halomethylmetal-mediated cycloalkane reactions, the transition metal-catalyzed decomposition of diazo compounds, and the nucleophilic addition-ring closure sequence. Expand
N-tosyloxycarbamates as a source of metal nitrenes: rhodium-catalyzed C-H insertion and aziridination reactions.
TLDR
The rhodium-catalyzed decomposition of N-tosyloxycarbamates to generate metal nitrenes which undergo intramolecular C-H insertion or aziridination reaction is described, as both reactions are stereospecific. Expand
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