Synthesis of fluorenyl alcohols via cooperative palladium/norbornene catalysis

Org Biomol Chem. 2019 Jun 26;17(25):6165-6173. doi: 10.1039/c9ob01085h.

Abstract

Herein, we report a novel catalytic synthesis of substituted 9H-fluoren-9-ols starting from aryl iodides and secondary ortho-bromobenzyl alcohols in the presence of palladium/norbornene as a catalytic system. The present protocol exhibits high functional group tolerance, mild reaction conditions and moderate to good yields. This transformation is based on two sequential pathways: (i) Pd(ii)-mediated oxidation of the secondary alcohol to the corresponding ketone and (ii) Pd(0)/norbornene-catalyzed reaction of the in situ generated ortho-bromoacetophenone with the aryl iodide.

Publication types

  • Research Support, Non-U.S. Gov't