In situ Raman spectroscopy for comparing ball milling and resonant acoustic mixing in organic mechanosynthesis†
Abstract
By using in situ Raman spectroscopy for reaction monitoring, we compare ball milling (BM) and resonant acoustic mixing (RAM) in the preparation α,β-unsaturated ketones (chalcones). RAM achieves similar transformations to BM, though adjustments in reaction conditions may be necessary due to different mixing regimes.