9,9-Disubstituted fluorenes are widely employed in materials science. We have developed a straightforward approach for the synthesis of 9,9-disubstituted fluorenes from 2-iodobiphenyls and α-diazoesters. The reaction proceeds via a tandem palladium-catalyzed C(sp)-H activation/carbenoid insertion sequence.
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| http://dx.doi.org/10.1021/acs.joc.7b02885 | DOI Listing |
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