One-pot synthesis of benzofused 8-oxabicyclo[3.3.1]nonanes via GaCl₃-mediated cyclocondensation of o-allylbenzaldehydes and 1,3-dicarbonyl synthons

Abstract

GaCl3-mediated one-pot cyclocondensation of o-allylbenzaldehydes and 1,3-dicarbonyls generates benzofused 8-oxabicyclo[3.3.1]nonanes in moderate to good yields in refluxing MeNO2 under easy-operational conditions. A plausible mechanism is proposed and discussed here. In...