Abstract
Our recent studies on novel carbon-carbon bond forming reactions using propargylic alcohols catalyzed only by thiolate-bridged diruthenium complexes are reviewed from the viewpoint of organic synthesis. The reactions are substitutions of hydroxyl group of the alcohols with a variety of carbon-centered nucleophiles such as simple ketones, cyclic 1,3-dicarbonyl compounds, aromatic and heteroaromatic compounds, phenols, naphthols, and alkenes. The asymmetric version of propargylic alkylation with acetone is also described. All of the reactions are considered to proceed via ruthenium-allenylidene complexes as key intermediates.
Keywords: Heteroaromatic compound, 1,3-cyclohexanedione, Propargylic alcohols, carbon-centered nucleophiles, Alkylation
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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