A route to regioselectively functionalized carbazoles, dibenzofurans, and dibenzothiophenes through anionic cyclization of benzyne-tethered aryllithiums
... Volume: Page: ... 17 Oxygen and sulfur analogues of carbazoles, such as dibenzofurans 18 and dibenzothiophenes, 19 are also biologically ... to these compounds 20 with functional groups at specific positions, as well as interesting synthetic transformations that ...
