Enantioselective Synthesis of Tertiary Allylic Fluorides by Iridium‐Catalyzed Allylic Fluoroalkylation
作者:Trevor W. Butcher、John F. Hartwig
DOI:10.1002/anie.201807474
日期:2018.10
Few allylic electrophiles containing two different substituents at a single allyl terminus and none in which one of the two substituents is a heteroatom, have been shown previously to react with iridium catalysts to form substitution products. We report that iridium‐catalysts are uniquely suited to form tertiary allylicfluorides enantioselectively by the addition of a diverse range of carbon‐centered
作者:Ying Wang、Guang-Fen Du、Cheng-Zhi Gu、Fen Xing、Bin Dai、Lin He
DOI:10.1016/j.tet.2015.11.044
日期:2016.1
N-heterocyclic carbenes (NHCs) have been utilised as highly efficient organocatalysts to catalyse Peterson olefination reaction of aldehydes with trimethylsilylketene ethyl trimethylsilyl acetal or fluoro(trimethylsilyl)ketene ethyl trimethylsilyl acetal to produce the corresponding functionalized olefines in 34–93% yields with excellent stereoselectivities.