Cooperative Tertiary Phosphine/Palladium Catalyzed Nucleophilic Allylation between Morita‐Baylis‐Hillman Carbonates and Alkenes
作者:Yue Li、Peng Chen、Zhi‐Chao Chen、Wei Du、Ying‐Chun Chen
DOI:10.1002/ejoc.202200218
日期:2022.9.6
A nucleophilic allylation reaction between isatin-derived Morita–Baylis–Hillman carbonates and simple alkenes was developed via cooperative tertiary phosphine and palladium catalysis. The in situ generated onium salts and η1-allylpalladium species were finely assembled with exclusive linear selectivity, producing a spectrum of 3,3-disubstituted oxindoles in moderate to good yields.
通过协同叔膦和钯催化开发了靛红衍生的 Morita-Baylis-Hillman 碳酸盐和简单烯烃之间的亲核烯丙基化反应。原位生成的鎓盐和 η 1 -烯丙基钯物质以独特的线性选择性精细组装,以中等至良好的产率产生一系列 3,3-二取代羟吲哚。