Technical Notes:

1.Catalyst for the Claisen rearrangement of propargyl vinyl ethers.

2. Catalyst for the oxidative cleavage of a Carbon-Carbon triple bond in (Z)-Enynols and cyclization.

References:

1. J. Am. Chem. Soc., 2004, 126, 15978.

2. J. Am. Chem. Soc., 2006, 128, 1 1332.