TY - JOUR A1 - Koby, Ross F. A1 - Rightmire, Nicholas R. A1 - Schley, Nathan D. A1 - Hanusa, Timothy P. A1 - Brennessel, William W. T1 - Halide metathesis in overdrive: mechanochemical synthesis of a heterometallic group 1 allyl complex JF - Beilstein Journal of Organic Chemistry PY - 2019/// VL - 15 SP - 1856 EP - 1863 SN - 1860-5397 DO - 10.3762/bjoc.15.181 PB - Beilstein-Institut JA - Beilstein J. Org. Chem. UR - https://doi.org/10.3762/bjoc.15.181 KW - caesium KW - entropy KW - intermolecular forces KW - mechanochemistry KW - metathesis KW - potassium N2 - As a synthesis technique, halide metathesis (n RM + M'Xn → RnM' + n MX) normally relies for its effectiveness on the favorable formation of a metal halide byproduct (MX), often aided by solubility equilibria in solution. Owing to the lack of significant thermodynamic driving forces, intra-alkali metal exchange is one of the most challenging metathetical exchanges to attempt, especially when conducted without solvent. 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