A metal-free, one-pot, iodine-mediated, microwave-assisted cyclization of 1-(1′-arylvinyl)-2-naphthols
(ortho-vinylnaphthols) into 1-arylnaphthofurans is developed. The 1-arylnaphthofurans are
isolated in good to excellent yields (65–90%) using two equivalents of iodine in acetonitrile.
The reactions proceed via the formation of 1-(2-iodo-1-phenylvinyl)naphthalen-2-ols
as intermediates. Overall, the protocol is convenient as the reactions occur smoothly
without the requirement of a transition-metal catalyst.
Key words
iodine-mediated - microwave-assisted - hydroarylation - 1-arylnaphthofurans - one-pot
reaction