Journal of the Chemical Society. Perkin transactions I p. 2597 - 2604 (1987)
Update date:2022-07-31
Topics:
Davies, Stephen G.
Mobbs, Bryan E.
Goodwin, Christopher J.
Activation of bromochromones has been achieved by Pd0 insertion into the carbon-halogen bond.The resultant species undergo coupling with alkenes leading to vinylated chromones.Vinylation occurs regiospecifically at the original site of bromination and therefore provides a method for the clean introduction of substituents into the chromone ring system.An anomalous reaction of a dibrominated chromone leading to a ring-opened product is described.
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