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Showing 1–3 of 3 results
Advanced filters: Author: Fredrik Haeffner Clear advanced filters

  • A counter-intuitive strategy that combines a chiral Lewis base catalyst with an achiral Lewis base co-catalyst results in an exceptionally large increase in the facility of catalytic enantioselective silylation of polyols. The catalytic ensemble drives such reactions to completion within a few hours, rather than the usual two–five days, without loss of enantioselectivity.

    • Nathan Manville
    • Hekla Alite
    • Marc L. Snapper
    Research
    Nature Chemistry
    Volume: 5, P: 768-774

  • Organofluorine compounds are important to medical, agricultural and materials research. Now, small organic molecules may be used to catalyse reactions of fluorinated ketones with organoboron reagents, yielding tertiary homoallylic alcohols in high enantiomeric purity. Electrostatic interactions between a catalyst's ammonium group and fluoro-organic substrate are key to control of stereoselectivity.

    • KyungA Lee
    • Daniel L. Silverio
    • Amir H. Hoveyda
    Research
    Nature Chemistry
    Volume: 8, P: 768-777