Technical Notes:

1.Goid catalyst used in the regio -and stereoselective synthesis of functionalized benzoboxepines.

2.Gold catalyst used in the cyclization reactions of o-(buta-1.,3-diyn-1-yl-)-substituted N-aryl ureas

3.Gold catalyst used in the cycloisomerization of 1,7 -enyne esters to structurally diverse cis-tetrahydropyridin-4-ylketones

4.Catalyst used in the synthesis of coum arin- containing natural products.

5. Catalyst used in the synthesis of benzo4, 5imidazo1,2-aquinazolinones.

References: 1.Org. Lett, 2012, 14, 4742. 2.Org. Lett.，2013，15，2616 3.J. Org. Chem., 2013, 78, 3183. 4.J.Org.Chem.，2013，78，9876 5.J. Org. Chem., 2013, 78, 4312.