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(A) Synthesis strategy of both enantiomers of bichalcone 2ab. (B) Scalable borylation of readily available brominated starting material 4. (C) Pd-catalyzed (1 mol% Pd) Suzuki cross coupling using amphiphile TPGS-750-M. Separation of the enantiomers was achieved by HPLC because of drastically different elution times (Δt R = 115 min for n-heptane: i-propanol 10:90 v/v) for both enantiomers using Lux i-Amylose-1.
