Diastereoselective silylene transfer reactions to chiral enantiopure alkenes: effects of ligand size and substrate bias.
Diastereoselective silylene transfer reactions to chiral enantiopure alkenes: effects of ligand size and substrate bias.
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非映选择性的甲硅烷基转移反应对手性对映烷烃:配体尺寸和底物偏置的影响。
DOI:
10.1039/c6dt04612f
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发表时间:
2017-07-11
期刊:
影响因子:
--
通讯作者:
Woerpel KA
中科院分区:
文献类型:
--
作者:
Rotsides CZ;Woerpel KA
Silylenes are useful reactive intermediates for the stereoselective construction of compounds containing carbon–silicon bonds. Despite their synthetic utility, the development of either an enantioselective or diastereoselective metal-catalyzed silylene transfer reaction in which ligands on the metal catalyst control stereoselectivity has not been achieved. In this article, we report that the structure of the alkene is most important for controlling stereoselectivity in these reactions. The stereochemical course of kinetically controlled silacyclopropanation reactions was not affected by the nature or chirality of the ligands on the metal. When silylene transfer reactions were reversible, however, products can be formed with a high degree of diastereoselectivity (90:10 d.r.).
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