Recently, it has been shown that under microwave irradiation in dry media a number of alcohols and phenols could be easily O-alkylated, 12 and aromatic aldehydes could undergo condensation 13 and cyclocondensation reactions. 14 Since, more recently, Varma et al. have reported the preparation of 2-aroylbenzo[b]furans using microwave irradiation to drive the condensation of α-tosyloxyketones with salicylaldehyde derivatives on potassium fluoride doped alumina, ...
[Chapleo, Christopher B.; Myers, Peter L.; Butler, Richard C. M.; Davis, John A.; Doxey, John C.; et al. Journal of Medicinal Chemistry, 1984 , vol. 27, # 5 p. 570 - 576]