Table 1.

Asymmetric Intramolecular Radical Bicyclization of Allyl Azidoformates by [Co(P2)]^a

^aPerformed in PhCl at 40 °C for 40 h using 2 mol % [Co(P2)] under N₂ in the presence of 4 Å MS; [azide 1] = 0.1 M; isolated yields.

^bIn situ addition of TMSN₃ (1.1 equiv) and TBAF (1.1 equiv).

^cIn situ addition of MeOH (2.0 mL) and H₂SO₄ (30 mol %).

^dAbsolute configuration was determined by X-ray as (3R, 4S).

^eAt 80 °C for 20 h.

^f100% conversion; >90% NMR yield.