Table 1.
Cpd | R | R1 | Overall Yield% | 4 (%) 5 (%) |
Cpd | R | R1 | Overall Yield% | 4 (%) 5 (%) |
---|---|---|---|---|---|---|---|---|---|
4a | H | H | 80 | 42 | 4f | Br | Cl | 79 | 40 |
5a | 38 | 5f | 39 | ||||||
4b | Br | H | 86 | 44 | 4g | H | F | 81 | 41 |
5b | 42 | 5g | 40 | ||||||
4c | H | Br | 94 | 49 | 4h | Br | F | 85 | 43 |
5c | 45 | 5h | 42 | ||||||
4d | Br | Br | 92 | 48 | 4i | H | OCH3 | 84 | 47 |
5d | 44 | 5i | 37 | ||||||
4e | H | Cl | 87 | 46 | 4j | Br | OCH3 | 96 | 48 |
5e | 41 | 5j | 48 |