Chiral Catalysts

(S)-2 – 2′ – 3 – 3′-Tetrahydro-6 – 6′-bis[3 – 5-bis(tert-butyl)-4-methoxyphenyl]-1 – 1′-spirobi[1H-indene]-7 – 7′-diol

Chiral Catalysts

(S)-2 – 2′ – 3 – 3′-Tetrahydro-6 – 6′-bis[4-(trifluoromethyl)phenyl]-1 – 1′-spirobi[1H-indene]-7 – 7′-diol

Chiral Catalysts

(S)-2 – 2′ – 3 – 3′-Tetrahydro-6 – 6′-di(2-naphthalenyl)-1 – 1′-spirobi[1H-indene]-7 – 7′-diol

Chiral Catalysts

(S)-2 – 2′ – 3 – 3′-Tetrahydro-6 – 6′-diphenyl-1 – 1′-spirobi[1H-indene]-7 – 7′-diol

Chiral Catalysts

(S)-2 – 2′-Bis(methoxymethoxy)-1 – 1′-binaphthyl

Chiral Catalysts

(S)-2 – 2′-Bis(methoxymethoxy)-1 – 1′-binaphthyl-3 – 3′-diboronic Acid Pinacol Ester