materials, this two-step method consists of silyl enol ether formation with TBDMSOTf, lactam activation with Tf2O/DTBMP, and halide-promoted cyclization. Radical dechlorination of the resulting 1-halotropan-3-ones led to the corresponding hydroxylated tropan-3-ones, which can be hydrogenated to yield 3α,6β-dihydroxytropanes. Starting from optically active keto-lactams, the method has been applied to the