期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 132, 期 48, 页码 17096-17098出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja1084207
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资金
- Deutsche Forschungsgemeinschaft
- EPSRC
- Engineering and Physical Sciences Research Council [EP/D501725/1, EP/E052185/1] Funding Source: researchfish
- EPSRC [EP/E052185/1] Funding Source: UKRI
While tertiary boranes undergo efficient protodeboronation with carboxylic acids, tertiary boronic esters do not. Instead, we have discovered that CsF with 1.1 equiv of H2O (on tertiary diarylalkyl boronic esters) or TBAF center dot 3H(2)O (on tertiary aryldialkyl boronic esters) effect highly efficient protodeboronation of tertiary boronic esters with essentially complete retention of configuration. Furthermore, substituting D2O for H2O provides ready access to deuterium-labeled enantioenriched tertiary alkanes. The methodology has been applied to a short synthesis of the sesquiterpene, (S)-turmerone.
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