Global ETD Search
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Showing 1 to 3 of 3 for “"Alkynyltrifluoroborates"”.
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Brønsted acid-catalyzed reaction of alkynyltrifluoroborates with acetals and ketals
The synthesis of small molecules is crucial in the pharmaceutical industry for producing drugs or biologically active compounds. Specifically, the formation of new carbon-carbon bonds is of great importance in synthetic organic chemistry. Brønsted acid catalysis is a powerful synthetic tool to make …
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Metal-free methodology for the preparation of ynones using potassium alkynyltrifluoroborates and its application to the synthesis of natural products
A straightforward procedure for the preparation of ynones from potassium alkynyltrifluoroborate salts and acyl chlorides or anhydrides has been developed. The one-pot reaction is advantageous in that it does not require exclusion of air or water, is operationally simple, has broad substrate scope, …
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Direct Brønsted acid-catalyzed functionalization of benzhydryl alcohols and 2-ethoxytetrahydrofuran using potassium trifluoroborate salts
… bond forming methodology involving alkenyl- and alkynyltrifluoroborates and in situ generated carbocations has been developed. In the presence of HBF4, we have shown that organotrifluoroborates react with benzhydryl alcohols to afford alkenes and alkynes in good to excellent yields. This protocol …