Pd-catalyzed enantioselective allyl-allyl cross-coupling.
Pd-catalyzed enantioselective allyl-allyl cross-coupling.
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DOI:
10.1021/ja105161f
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发表时间:
2010-08-11
影响因子:
15
通讯作者:
Morken, James P.
中科院分区:
文献类型:
--
作者:
Zhang, Ping;Brozek, Laura A.;Morken, James P.
The Pd-catalyzed cross coupling of terminal allylic carbonates and allylB(pin) is described. The regioselectivity of this reaction is sensitive to the bite angle of the ligand with small bite angle ligands favoring the branched substitution product. This mode of regioselection is consistent with a reaction that operates by a 3,3′ reductive elimination reaction. In the presence of appropriate chiral ligands, this reaction is rendered enantioselective and applies to both aromatic and aliphatic allylic carbonates.
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