Catalytic One-Step Deoxytrifluoromethylation of Alcohols
作者:Francisco de Azambuja、Sydney M. Lovrien、Patrick Ross、Brett R. Ambler、Ryan A. Altman
DOI:10.1021/acs.joc.8b03072
日期:2019.2.15
A new bench-stable trifluoromethylation reagent, phenyl bromodifluoroacetate, converts readily available alcohols to trifluoromethanes in a Cu-catalyzed deoxytrifluoromethylation reaction. This reaction streamlines access to target biologically active molecules, and should be useful for a variety of medicinal, agricultural, and materials chemists.
Copper-Catalyzed Decarboxylative Trifluoromethylation of Allylic Bromodifluoroacetates
作者:Brett R. Ambler、Ryan A. Altman
DOI:10.1021/ol402780k
日期:2013.11
this transformation typically requires four-step processes, specialty chemicals, and/or stoichiometric metals to access the trifluoromethyl-containing product. A two-step copper-catalyzed decarboxylative protocol for converting allylic alcohols to trifluoromethanes is reported. Preliminary mechanistic studies distinguish this reaction from previously reported Cu-mediated reactions.
Regio- and Stereoselective Allylic Trifluoromethylation and Fluorination using CuCF<sub>3</sub> and CuF Reagents
作者:Johanna M. Larsson、Stalin R. Pathipati、Kálmán J. Szabó
DOI:10.1021/jo4010074
日期:2013.7.19
Copper-mediated trifluoromethylation of allylic chlorides and trifluoroacetates was performed using a convenient Cu–CF3 reagent. The reaction is suitable for selective synthesis of allyl trifluoromethyl species. Mechanistic studies indicate that the reaction proceeds via a nucleophilic substitution mechanism involving allyl copper intermediates. The analogous Cu–F reagent was suitable for fluorination