Practical C-H functionalization of quinones with boronic acids.
Practical C-H functionalization of quinones with boronic acids.
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DOI:
10.1021/ja111152z
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发表时间:
2011-03-16
影响因子:
15
通讯作者:
Baran, Phil S.
中科院分区:
文献类型:
--
作者:
Fujiwara, Yuta;Domingo, Victoriano;Seiple, Ian B.;Gianatassio, Ryan;Del Bel, Matthew;Baran, Phil S.
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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