Control of diastereoselectivity for iridium-catalyzed allylation of a prochiral nucleophile with a phosphate counterion.
Control of diastereoselectivity for iridium-catalyzed allylation of a prochiral nucleophile with a phosphate counterion.
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DOI:
10.1021/ja311363a
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发表时间:
2013-02-13
影响因子:
15
通讯作者:
Hartwig, John F.
中科院分区:
文献类型:
--
作者:
Chen, Wenyong;Hartwig, John F.
We report a highly diastereo- and enantioselective allylation of azlactones catalyzed by the combination of a metallayclic iridium complex and an optically inactive phosphate anion. The process demonstrates an approach to conduct diastereoselective reactions with prochiral nucleophiles in the presence of metallacyclic allyliridium complexes. The reaction provides access to an array of enantioenriched allylated azlactones containing adjacent tertiary and quaternary carbon centers. Preliminary mechanistic studies suggest that the phosphate and methyl carbonate anions together induce the unusually high diastereoselectivity.
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影响因子:
15
作者:
Chen W;Hartwig JF
通讯作者:
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影响因子:
2
作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
Ditrich, K
影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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