Arylethyne Bromoboration-Negishi Coupling Route to E- or Z-Aryl-Substituted Trisubstituted Alkenes of ≥98% IsomericPurity. New Horizon in the Highly Selective Synthesis of Trisubstituted Alkenes
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The hitherto unprecedented palladium-catalyzed cross-coupling of (Z)-β-bromo-β-arylethenylboranes can be made to proceed satisfactorily through (1) the use of highly catalytically active bis(tri-tert-butylphosphine)palladium or dichloro[N,N-bis-(2,6-diisopro... ...
