Direct α‑Arylation/Heteroarylation of 2‑Trifluoroboratochromanones via Photoredox/Nickel Dual Catalysis
2017-01-11T22:13:23Z (GMT) by
Utilizing photoredox/nickel dual catalysis, diverse flavanones have been synthesized by coupling novel 2-trifluoroboratochromanone building blocks with aryl and heteroaryl bromide partners. The newly reported trifluoroboratochromanones can be easily accessed from the corresponding chromones on multigram scale. This represents a general route for accessing natural and unnatural flavanones that were previously formed through a synthetically more restrictive ring closure route from chalcone precursors.
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