Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 10, Pages 3292-3295Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja111152z
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Funding
- NIH/NIGMS [GM-073949]
- NSF
- Japan Society for the Promotion of Science (JSPS)
- Spanish MICINN
- Amgen
- Bristol-Myers Squibb
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A direct functionalization of a variety of quinones with several boronic acids has been developed. This scalable reaction proceeds readily at room temperature in an open flask using inexpensive reagents: catalytic silver-(I) nitrate in the presence of a persulfate co-oxidant. The scope with respect to quinones is broad, with a variety of alkyl-and arylboronic acids undergoing efficient cross-coupling. The mechanism is presumed to proceed through a nucleophilic radical addition to the quinone with in situ reoxidation of the resulting dihydroquinone. This method has been applied to complex substrates, including a steroid derivative and a farnesyl natural product.
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