The direct conversion of 3-tri-organosilyl-or 3-organogermyl-prop-2-yn-1-ols into the corresponding imines using a solvent-free MW-assisted approach is reported. This highly effective methodology demonstrates the exploitation of α-silicon-or germanium-containing propynals generated in situ in a one-pot synthesis of ynimines. The efficient solvent-free MWmediated synthesis of the corresponding silyl-or germyl-prop-2-yn-1-als has been carried out by oxidation of the starting alcohols with manganese dioxide.
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