Cobalt(II)-Catalyzed 1,4-Addition of Organoboronic Acids to Activated Alkenes: An Application to Highly<i>cis</i>-Stereoselective Synthesis of Aminoindane Carboxylic Acid Derivatives
作者:Min-Hsien Chen、Subramaniyan Mannathan、Pao-Shun Lin、Chien-Hong Cheng
DOI:10.1002/chem.201202575
日期:2012.11.19
It all adds up: The 1,4‐addition of organoboronic acids to activated alkenes catalyzed by [Co(dppe)Cl2] is described. A [3+2]‐annulation reaction of ortho‐iminoarylboronic acids with acrylates to give various aminoindane carboxylic acid derivatives with cis‐stereoselectivity is also demonstrated (see scheme; dppe=1,2‐bis(diphenylphosphino)ethane).
所有这些加起来:描述了[Co(dppe)Cl 2 ]催化的有机硼酸与活化烯烃的1,4加成。还证明了邻亚氨基芳基硼酸与丙烯酸酯的[3 + 2]环化反应可得到具有顺式立体选择性的各种氨基茚满羧酸衍生物(见方案; dppe = 1,2-双(二苯基膦基)乙烷)。