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  • Title: Novel, tunable, and efficient chiral bisdihydrobenzooxaphosphole ligands for asymmetric hydrogenation.
    Author: Tang W, Qu B, Capacci AG, Rodriguez S, Wei X, Haddad N, Narayanan B, Ma S, Grinberg N, Yee NK, Krishnamurthy D, Senanayake CH.
    Journal: Org Lett; 2010 Jan 01; 12(1):176-9. PubMed ID: 19950894.
    Abstract:
    A series of novel, efficient, air-stable, and tunable chiral bisdihydrobenzooxaphosphole ligands (BIBOPs) were developed for rhodium-catalyzed hydrogenations of various functionalized olefins such as alpha-arylenamides, alpha-(acylamino)acrylic acid derivatives, beta-(acylamino)acrylates, and dimethyl itaconate with excellent enantioselectivities (up to 99% ee) and reactivities (up to 2000 TON).
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