Ethylene in organic synthesis. Repetitive hydrovinylation of alkenes for highly enantioselective syntheses of pseudopterosins.

Ethylene in organic synthesis. Repetitive hydrovinylation of alkenes for highly enantioselective syntheses of pseudopterosins.
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DOI:
10.1021/ja201321v
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发表时间:
2011-04-20
影响因子:
15
通讯作者:
RajanBabu, T. V.
RajanBabu, T. V.
中科院分区:
化学1区
文献类型:
--
作者:
Mans, Daniel J.;Cox, G. Adam;RajanBabu, T. V.

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In this report we highlight the significant potential of ethylene as a reagent for the introduction of a vinyl group with excellent stereoselectivity at three different stages in the synthesis of a broad class of natural products, best exemplified by syntheses of pseudopterosins. The late-stage applications of the asymmetric hydrovinylation reaction further illustrate the compatibility of the catalyst with complex functional groups. We also show that depending on the choice of the catalyst, it is possible to either enhance or even completely reverse the inherent diastereoselectivity in the reactions of advanced chiral intermediates. This should enable the synthesis of diastereomeric analogs of several classes of medicinally relevant compounds that are not readily accessible by the existing methods, which depend on ‘substrate-control’ for the installation of many of the chiral centers, especially in molecules of this class.
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