Pd(0)-Catalyzed Intramolecular Reductive Heck Reaction of Vinyl Iodide and Oxime Ether: Enantioselective Synthesis of Cyclic Allylic <i>N</i>-Alkoxy Amine
作者:Ninglei Yang、Ming Dong、Xiaofeng Tong
DOI:10.1021/acs.orglett.2c00823
日期:2022.4.1
Whereas the intramolecular reductive Heck reaction of aryl/vinyl halide and alkene has been well documented, the oxime analogue remains extremely elusive. Herein we report the Pd(0)-catalyzed intramolecular reductive Heck reaction of vinyl iodide and oxime ether with the use of formic acid as the reductant. It is found that the TsOH additive plays a crucial role in the reaction efficiency, and the
尽管芳基/乙烯基卤化物和烯烃的分子内还原 Heck 反应已得到充分证明,但肟类似物仍然非常难以捉摸。在这里,我们报告了使用甲酸作为还原剂的碘乙烯和肟醚的 Pd(0) 催化的分子内还原 Heck 反应。发现TsOH添加剂对反应效率起着至关重要的作用,( S )-SEGPhos配体使环状烯丙基N-烷氧基胺产物具有高对映选择性。