The AIBN-induced radical reaction of 1-(2-iodoethyl)indoles and pyrroles wi
th Bu3SnH under 80 atm of CO was examined. Carbon monoxide was efficiently
trapped by an alkyl radical to form an acyl radical which underwent intramo
lecular addition to the aromatic system to produce bicyclic aromatic ketone
s after in situ oxidation. (C) 1999 Elsevier Science Ltd. All rights reserv
ed.