Wang, Bin A general synthetic route to 6,6-substituted-6H-dibenzo[b,d]pyrans from dibenzofuran. [electronic resource] - The Journal of organic chemistry Oct 2006 - 8291-3 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0022-3263 Standard No.: 10.1021/jo061415r doi Subjects--Topical Terms: Benzofurans--chemistryLithiumOrganometallic CompoundsPyrans--chemical synthesis