Technical Notes:

1.Catalyst used for cycloisomerization reactions of 2-(2-propynyl)pyridine N-oxides

2.Catalystused for the cycloisomerization of1.6-diynes.

3.Catalyst used for cycloisomerizations terminated by sp3C-H bond insertion.

4.Synthesis of aromatic ketones by a transition metal-catalyzed tandem sequence.

References: 1.Chem. Commun,, 2012, 48, 7622. 2.Angew. Chem., Int. Ed., 2011, 50, 2583. 3.J. Am. Chem. Soc., 2009, 131, 2809. 4. J. Am. Chem. Soc., 2006, 128, 7436. :