作者:Andrew L. Kocen、Maurice Brookhart、Olafs Daugulis
DOI:10.1039/c7cc04953f
日期:——
We report a method for palladium-catalysed chain-running isomerization of terminal and internal alkenes. Using an air-stable 2,9-dimethylphenanthroline-palladium catalyst in combination with NaBAr4 promoter, olefins are converted to the most stable double bond isomer at −30 to 20 °C. Silyl enol ethers are readily formed from silylated allylic alcohols. Fluorinated substituents are compatible with the
我们报告了末端和内部烯烃的钯催化链运行异构化的方法。使用空气稳定的2,9-二甲基菲咯啉-钯催化剂与NaBAr 4助催化剂结合,可在-30至20°C的条件下将烯烃转化为最稳定的双键异构体。甲硅烷基烯醇醚易于由甲硅烷基化的烯丙醇形成。氟化取代基与反应条件相容,从而可以合成氟烯酸酯。可以以克为单位使用低至0.05%的催化剂负载量。