Table 3.
Catalyst (mol %) | 11:12b | E:Z (11)b | Yield (11 + 12), %c |
---|---|---|---|
110 | 62:38 | 66:34 | 62 |
80 | 63:37 | 63:37 | 54 |
10d | 51:49 | 57:43 | 82 |
1 | 61:39 | 48:52 | 76 |
Reactions were performed by 2 h addition of 8 to refluxing solution of 10 mol% copper(I) hexafluorophosphate in 10 mL of dichloromethane.
Ratios of products obtained by 1H NMR spectroscopy.
Yields were obtained from the mass of the isolated products and the integrated 1H NMR ratios for 11 and 12.
Reaction repeated three times with same outcome.