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Enantiospecific Generation and Trapping Reactions of Aryne Atropisomers

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journal contribution
posted on 28.09.2020, 15:06 by Yun-Long Wei, Guillaume Dauvergne, Jean Rodriguez, Yoann Coquerel
Enantioenriched aryne atropisomers having a biaryl stereogenic axis vicinal to the reactive triple bond are demonstrated to exist. These reaction intermediates are easily produced in situ and can undergo the standard aryne cycloaddition chemistry in an enantiospecific manner. Notably, the aryne atropisomers herein have allowed the practical syntheses of a small nanographene as well as some triptycene and anthracene derivatives that embed stereogenic axes of controlled absolute configurations.