Table 3. Addition of Alcohols to DTC Using ZnEt₂ as a Precatalyst^a.

^aReaction conditions: the corresponding alcohol (0.50 mmol) or diol (0.25 mmol), 112 mg of DTC (0.50 mmol), 25.0 μL of a 1 M solution of ZnEt₂ in hexane (0.025 mmol) in C₆D₆ (500 μL), using Si(SiMe₃)₄ as internal standard.

^bIsolated yield from preparative-scale reaction.

^cIsomer ratio.