S Prado, H Ledeit, S Michel, M Koch… - Bioorganic & medicinal …, 2006 - Elsevier
Alkylation of 2-hydroxydibenzofuran with 3-chloro-3-methyl-1-butyne, followed by Claisen
rearrangement, gave access to 3, 3-dimethyl-3Hbenzofuro [3, 2-f][1]-benzopyran. Several …