Catalytic enantioselective conjunctive cross-couplings that employ Grignard reagents are shown to furnish an array of nonracemic chiral organoboronic esters in an efficient and highly selective fashion. The utility of sodium triflate in facilitating this reaction is two-fold: it enables "ate" complex formation and overcomes catalytic inhibition by halide ions.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5539536PMC
http://dx.doi.org/10.1021/jacs.6b12663DOI Listing

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