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The synthesis and resolution of the first 3,3′-disubstituted BINAP ligands containing C-bonded substituents are described. An ortho-metallation/electrophile capture sequence was used to obtain the key trisubstituted naphthalene intermediate available and this intermediate was successfully converted into the desired ligands. Minor changes in the steric and stereoelectronic components of the 3,3′-substituents...
3,3′-Disubstituted xylBINAP derivatives were applied to inter- and intramolecular asymmetric Heck/Mizoroki reactions. The results from these reactions were compared to those obtained with (R)-xylBINAP, (S)-BINAP and 3,3′-disubstituted BINAP derivatives. Catalysts derived from 3,3′-disubstituted xylBINAP ligands were found to be most effective in the arylation of 2,3-dihydrofuran in terms of reaction...
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