Application of Sharpless asymmetric dihydroxylation to thienyl- and benzothienyl acrylates and crotonates
摘要:
Optimized conditions for the catalytic asymmetric dihydroxylation have been applied to thiophene and benzothiophene containing acrylates and crotonates to afford the corresponding diols in good overall yields and good to excellent enantiomeric excess. The products obtained were revealed to be useful intermediates in peptidomimetic synthesis. (c) 2006 Elsevier Ltd. All rights reserved.
Reactivity of Stabilized Vinyl Diazo Derivatives toward Unsaturated Hydrocarbons: Regioselective Gold-Catalyzed Carbon-Carbon Bond Formation
作者:José Barluenga、Giacomo Lonzi、Miguel Tomás、Luis A. López
DOI:10.1002/chem.201203217
日期:2013.1.28
alkenyldiazo compounds and unsaturated substrates. The process represents a new CC bond‐formation reaction in which alkenes, alkynes, and arenes are active reagents for the Cγ‐allylation, ‐allenylation, and ‐arylation, respectively, of alkenyldiazo substrates (see scheme). The reactivity pattern is likely to rely on the formation of a highly electrophilic alkenylgold carbenoid, which may be involved in a
Application of Sharpless asymmetric dihydroxylation to thienyl- and benzothienyl acrylates and crotonates
作者:Carlo Bonini、Lucia Chiummiento、Margherita De Bonis、Maria Funicello、Paolo Lupattelli、Rocco Pandolfo
DOI:10.1016/j.tetasy.2006.10.035
日期:2006.11
Optimized conditions for the catalytic asymmetric dihydroxylation have been applied to thiophene and benzothiophene containing acrylates and crotonates to afford the corresponding diols in good overall yields and good to excellent enantiomeric excess. The products obtained were revealed to be useful intermediates in peptidomimetic synthesis. (c) 2006 Elsevier Ltd. All rights reserved.