Controllable Mono-/Dialkenylation of Benzyl Thioethers through Rh-Catalyzed Aryl CH Activation
作者:Xi-Sha Zhang、Qi-Lei Zhu、Yun-Fei Zhang、Yan-Bang Li、Zhang-Jie Shi
DOI:10.1002/chem.201300829
日期:2013.9.2
Under solvent control: Benzyl thioethers were alkenylated in excellent yields with broad substrate scope and the selectivity (mono‐ vs. disubstituted product) was controlled by the solvent and ratio of reactants (see scheme). Sequential alkenylation with two different alkenes was also carried out in a one‐pot process. In addition, the thioether directing group was removed in a one‐pot process with
在溶剂控制下:苄基硫醚以优异的收率被烯基化,具有广泛的底物范围,并且选择性(单取代对二取代的产物)由溶剂和反应物的比例控制(参见方案)。在一个锅法中,还用两种不同的烯烃进行了连续的烯基化反应。此外,在单锅法中同时将双键加氢得到硫醚导向基团,得到甲苯衍生物。