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  • Title: Highly active in situ catalysts for anti-Markovnikov hydration of terminal alkynes.
    Author: Labonne A, Kribber T, Hintermann L.
    Journal: Org Lett; 2006 Dec 07; 8(25):5853-6. PubMed ID: 17134289.
    Abstract:
    The anti-Markovnikov hydration of terminal alkynes to give aldehydes is catalyzed by complexes derived in situ from air-stable [CpRu(eta6-naphthalene)]PF6 (C) and 6-aryl-2-diphenylphosphinopyridines (L). Ligands L are readily available from a modular synthesis. Increasing the size of the ligand C-6 aryl group in the order R = Ph < mesityl < 2,4,6-triisopropylphenyl < (2,4,6-triphenyl)phenyl gave hydration catalysts of highest known activity. [reaction: see text]
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