Mild decarboxylative allylation of coumarins.
Mild decarboxylative allylation of coumarins.
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DOI:
10.1021/ol901288r
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发表时间:
2009-08-06
期刊:
影响因子:
5.2
通讯作者:
Tunge JA
中科院分区:
文献类型:
--
作者:
Jana R;Trivedi R;Tunge JA
Allyl esters of 3-carboxylcoumarins undergo facile decarboxylative coupling at just 25–50 °C. This represents the first extension of decarboxylative C–C bond-forming reactions to the coupling of aromatics with sp3-hybridized electrophiles. Finally, the same concept can be applied to the sp2–sp3 couplings of pyrones and flavones. Thus, a variety of biologically important heteroaromatics can be readily functionalized without the need for strong bases or stoichiometric organometallics that are typically required for more standard cross-coupling reactions.
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