Direct synthesis of unprotected phenols using palladium-catalysed cross coupling reactions of functionalised organozinc reagents.
Palladium-catalysed reaction of unprotected 2-, 3-, and 4-iodophenols with a range of amino acid derived organozinc reagents (not used in excess) gives the expected products in good to excellent yield, demonstrating that carbon-zinc bonds are not protonated by acidic phenols under the conditions of palladium-catalysed coupling reactions.
Jackson
Richard F W
RF
Department of Chemistry, Dainton Building, University of Sheffield, Brook Hill, Sheffield, UKS3 7HF. r.f.w.jackson@shef.ac.uk
Rilatt
Ian
I
Murray
P John
PJ