Journal
ORGANIC LETTERS
Volume 13, Issue 16, Pages 4466-4469Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol2018278
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Funding
- National Research Foundation of Korea (NRF) [NRF-2010-0022179, NRF-2011-0016436]
- National Research Foundation of Korea [2010-0022179, 2011-0016436] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A new efficient method for the direct alkenylation of chromones via a palladium(II)-catalyzed C-H functionalization reaction was developed. The use of pivalic acid with Cu(OAc)(3)/Ag2CO3 provided superior reactivity in the cross-coupling of chromones with alkene partners. This approach represents a significant advance over the existing two-step method and afforded various 3-vinylchromone derivatives, which are privileged structures in many biologically active compounds and versatile synthetic building blocks.
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