A novel and highly regioselective Cr-mediated route to functionalised quinone boronic ester derivatives ... Mark W. Davies,a Christopher N. Johnsonb and Joseph PA Harrity*a a Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, UK S3 7HF. E-mail: j.harrity@sheffield.ac.uk b Discovery Chemistry Europe, SmithKline Beecham, New Frontiers Science Park, Harlow, Essex, UK CM19 5AW ... Received (in Liverpool, UK) 10th August ...