Selective Transformations of Carbonyl Functions in the Presence of α,β-Unsaturated Ketones: Concise Asymmetric Total Synthesis of Decytospolides A and B
摘要:
Enones selectively react with a combination of PPh3 and TMSOTf to produce phosphonium silyl enol ethers, which work as protective groups of enones during the reduction of other carbonyl functions and can be easily deprotected to regenerate parent enones at workup. Furthermore, the first ketone selective alkylations in the presence of enones were also accomplished. This in situ protection method was applied to concise asymmetric total syntheses of decytospolides A and B.
METHODS AND COMPOSITIONS FOR PRODUCING HYDROCARBONS
申请人:SCHIRMER ANDREAS
公开号:US20100221798A1
公开(公告)日:2010-09-02
Compositions and methods for producing hydrocarbons such as aldehydes, alkanes, and alkenes are described herein. Certain hydrocarbons can be used in biofuels.
Methods and compositions for producing fatty acids and fatty alcohols
申请人:REG Life Sciences, LLC
公开号:EP2927315A1
公开(公告)日:2015-10-07
Compositions and methods for producing hydrocarbons such as aldehydes, alkanes, and alkenes are described herein. Certain hydrocarbons can be used in biofuels.