The synthesis of novel furo-, thieno-, and pyrroloazepine compounds,
using the oxidative radical alkylation of three five-membered heterocyclic
3-acetic acid derivatives, is described. The bicyclic systems were
obtained, via a small number of steps, directly from commercially
available materials.
oxidative radicals - carboxylic acid homologation - furan - thiophene - pyrrole -
azepinones