Table 4. Propargylic Alcohols Scope with (HO)P(OEt)₂A^a.

^aReaction conditions: 1a (2 mmol) and 2X (1.5 equiv) in technical toluene (2 mL).

^b1H NMR yields/recoveries are the average of two independent experiments and were determined with respect to 1,3,5-trimethoxybenzene as internal standard.

^cIsolated yields are provided in brackets.

^d12% of the corresponding enone was also formed in this reaction according to the ¹H NMR.