作者:Yoko Hamada、Rio Matsunaga、Tomoko Kawasaki-Takasuka、Takashi Yamazaki
DOI:10.3390/molecules26144365
日期:——
corresponding a,b-unsaturated or saturated ketones, respectively, which was applied this time to the Claisen rearrangement after O-allylation of the allylic alcohols with a CF3 group, followed by isomerization to the corresponding allyl vinyl ethers via the proton shift, enabling the desired rearrangement in a tandem fashion, or in a stepwise manner, the latter of which was proved to have attained an excellent
我们之前已经阐明,强吸电子 CF 3基团很好地影响了含CF 3的炔丙醇或烯丙醇的碱介导的质子转移,分别提供了相应的 a、b-不饱和或饱和酮,这一次应用在烯丙醇与 CF 3基团O-烯丙基化后进行克莱森重排,然后通过质子转移异构化为相应的烯丙基乙烯基醚,以串联方式或逐步方式实现所需的重排,后者证明在钯催化剂的帮助下获得了极好的非对映选择性。