Synthesis of binaphthyl bridged chiral bis-corrole

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Chiral bis-corrole 1 and 2 were prepared by reaction of (s)-2,2-bis(bromomethyl)-1,1-binaphthyl and 10-(4-hydroxylphenyl)-5,15-bis(pentafluorophenyl)corrole or 10-(3-hydroxylpbenyl)-5,15-bis(pentafluorophenyl)corrole in DMF at 60 ℃ in the presence of anhydrous K2CO3 with an isolated yield~8%. Both 1 and 2 exhibit unsymmetrical induced circular dichroism (ICD) in the sorer band with positive exciton chirality.
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