Covalent Organic Framework as a Heterogeneous Ligand for the Regioselective Oxidative Heck Reaction

Org Lett. 2020 Feb 21;22(4):1480-1484. doi: 10.1021/acs.orglett.0c00061. Epub 2020 Feb 3.

Abstract

A simple imine-based covalent organic framework (COF) as heterogeneous ligand for PdII-promoted Heck reaction is reported. Good regioselectivity for a wide range of electronically unbiased olefins is obtained (linear/branched >100:1 in most cases). Related tests and density functional theory calculations are used to explore the reason underlying the high selectivity. This research opens a route for COF as an intriguing platform to control regioselectivity catalysis.