2,2′-Dimethoxy-1,1′-binaphthyl-3,3′-diboronic Acid, a Versatile Intermediate in the Synthesis of 3,3′-Diaryl Substituted Binaphthyl Derivatives

Summary.

 2,2′-Dimethoxy-1,1′-binaphthyl-3,3′-diboronic acid was prepared in 48% yield from 2,2′-dimethoxy-1,1′-binaphthyl and used as a key intermediate in Suzuki cross-coupling reactions to yield various 2,2′,3,3′-symmetrically substituted binaphthyl derivatives in 22–72% yield..

Zusammenfassung.

2,2′-Dimethoxy-1,1′-binaphthyl-3,3′-diborsäure wurde in 48% Ausbeute aus 2,2′-Dimethoxy-1,1′-binaphthyl hergestellt und als Schlüsselverbindung in Suzuki-Cross-Kupplungsreaktionen eingesetzt, um zahlreiche 2,2′,3,3′ symmetrisch tetrasubstituierte Binaphthylderivate darzustellen..