Cross‐Electrophile Coupling of Vinyl Halides with Alkyl Halides
作者:Keywan A. Johnson、Soumik Biswas、Daniel J. Weix
DOI:10.1002/chem.201601320
日期:2016.5.23
An improved method for the reductive coupling of aryl and vinyl bromides with alkylhalides that gave high yields for a variety of substrates at room temperature with a low (2.5 to 0.5 mol %) catalyst loading is presented. Under the optimized conditions, difficult substrates, such as unhindered alkenyl bromides, can be coupled to give the desired olefins with minimal diene formation and good stereoretention
Herein, we report an efficient photoinduced iron-catalyzed strategy for cross-couplings of alkyl carboxylic and acrylic acids, which provides a powerful tool for the synthesis of a variety of alkenes with polar functional groups. This novel synthetic methodology can also be applied to the preparation of ketones by using α-keto acids. Mechanistic experiments revealed preliminary mechanistic details