Entry | Catalyst | Yield % |
---|---|---|
1 | Copper (II)acetate | 65 |
2 | Copper (II) acetylacetonate | 58 |
3 | Dihydroxycopper | 49 |
4 | Copperhydroxide phosphate | 68 |
5 | Trifluoromethanesulfonate Copper(II) | 52 |
6 | Trifluoromethanesulfonate Copper(II)pyridine | 61 |
7 | Dichloro(1,10-phenanthroline)copper(II) | 92 |
8 | Copper(II)chloride | 57 |
9 | Copper(I) iodide | 44 |