Boron Lewis Acid Catalyzed Intermolecular trans-Hydroarylation of Ynamides with Hydroxyarenes.
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DOI: 10.1021/acs.orglett.2c00574
Abstract: An atom-economic protocol for the efficient and highly chemo- and stereoselective trans-hydroarylation of ynamides with hydroxyarenes catalyzed by B(C6F5)3 has been developed. Use of readily available starting materials, low catalyst loading, mild reaction conditions, a… read more here.
Keywords: ynamides hydroxyarenes; hydroarylation ynamides; trans hydroarylation; lewis acid ... See more keywords
A stable silylborane with diminished boron Lewis acidity.
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DOI: 10.1039/d2dt00962e
Abstract: A new dimethyl(phenyl)silylborane having a naphthalene-1,8-diaminato (dan) substituent on the boron center, PhMe2Si-B(dan), was synthesized. Owing to the diminished boron Lewis acidity, it is highly stable toward air. Synthetic application of the silylborane to catalytic… read more here.
Keywords: silylborane; lewis acidity; boron; diminished boron ... See more keywords
Atom-economic and stereoselective catalytic synthesis of fully substituted enol esters/carbonates of amides in acyclic systems enabled by boron Lewis acid catalysis
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DOI: 10.1039/d3sc01394d
Abstract: Carboacyloxylation of internal alkynes is emerging as a powerful and straightforward strategy for enol ester synthesis. However, the reported examples come with limitations, including the utilization of noble metal catalysts, the control of regio- and… read more here.
Keywords: synthesis; enol; lewis acid; enol esters ... See more keywords