The alkoxycarbonylation of protected propargyl alcohols
作者:R. Sole、A. Scrivanti、M. Bertoldini、V. Beghetto、Md. Mahbubul Alam
DOI:10.1016/j.mcat.2020.111179
日期:2020.11
of the C≡C triple bond of propargyl alcohol is a sustainable synthetic approach to 2-(hydroxymethyl)acrylates, a family of valuable intermediates. The developed synthetic protocol includes protection of the alcoholic function of the alkyne before its carbonylation in the presence of Drent’s catalytic system. Protection step effectively extends the catalyst life hence enhancing the practical applicability
作者:Pierre-Alain R. Breuil、Frederic W. Patureau、Joost N. H. Reek
DOI:10.1002/anie.200806177
日期:2009.3.9
catalysts! A single hydrogen bond between ligands coordinated to a rhodium center is critical for the formation of pure supramolecular catalysts for asymmetric hydrogenationreactions. The ester group of the amidite ligand (see scheme) also forms a hydrogen bond with the coordinated substrate. Use of the heterocomplex afforded the highest enantioselectivity reported to date for the hydrogenation of several