Catalytic Chan–Lam coupling using a ‘tube-in-tube’ reactor to deliver molecular oxygen as an oxidant
Carl J. Mallia1, Paul M. Burton2, Alexander M. R. Smith2, Gary C. Walter2, Ian R. Baxendale1
- 1 Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom
- 2 Syngenta CP R&D Chemistry, Jealott’s Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United KingdomRead the publication that featured this abstract
A flow system to perform Chan–Lam coupling reactions of various amines and arylboronic acids has been realised employing molecular oxygen as an oxidant for the re-oxidation of the copper catalyst enabling a catalytic process. A tube-in-tube gas reactor has been used to simplify the delivery of the oxygen accelerating the optimisation phase and allowing easy access to elevated pressures. A small exemplification library of heteroaromatic products has been prepared and the process has been shown to be robust over extended reaction times.
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