Visible light/Ir(III) photocatalytic initiation of xanthate-based radical-chain reactions: Xanthate group transfer and oxidative addition to aromatic systems

Add time:08/21/2019    Source:sciencedirect.com

A photocatalyzed redox generation of radicals from O-ethyl xanthates to generate electrophilic radicals under photoredox catalysis, using Ir(ppy)3 and blue LEDs irradiation is described. The protocol can be used in classical xanthate-based inter- and intra-molecular group transfer reactions and oxidative radical addition to several heteroaromatic systems. The process does not require high temperature and reactions are cleaner compared with the traditional peroxide initiation. In the oxidative addition to aromatic systems, the oxidation process is part of the catalytic cycle and does not require a stoichiometric oxidant such as DLP which is particularly difficult to separate from the product.

We also recommend Trading Suppliers and Manufacturers of O-isopropyl xanthate (cas 108-25-8). Pls Click Website Link as below: cas 108-25-8 suppliers

Prev:Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles
Next:Structure–activity relationship of xanthates with different hydrophobic groups in the flotation of pyrite)