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Synthesis and Characterization of New Enantiopure 7,7′-Disubstituted 2,2′-Dihydroxy-1,1′-binaphthyls: Useful Ligands for the Asymmetric Allylation Reaction of Aldehydes

✍ Scribed by Marco Bandini; Sonia Casolari; Pier Giorgio Cozzi; Gloria Proni; Erick Schmohel; Gian Piero Spada; Emilio Tagliavini; Achille Umani-Ronchi

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
343 KB
Volume
2000
Category
Article
ISSN
1434-193X

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✦ Synopsis

As an extension of our interest in developing new enantioselective reactions based on the binaphthol privileged ligand, we report a simple approach to the synthesis of 7,7Ј-disubstituted binaphthols. The commercially available 1,7-dihydroxynaphthalene (1) was used as starting material for the preparation of the bromoderivatives 2, which were oxidatively coupled to afford 3, a key intermediate for the preparation of a variety of [a]

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