Table 2.
entry | 1 | R | yield, %a |
---|---|---|---|
1 | a | H | 84 |
2 | b | OMe | 63 |
3 | c | Me | 54 |
4 | d | CH2CH2Ph | 64 |
5 | e | CHCHPh | 70 |
6 | f | Ph | 54 |
7 | g | 3,5-OMe2C6H3 | 58 |
8 | h | Br | 73 |
Isolated after silica gel chromatography.
entry | 1 | R | yield, %a |
---|---|---|---|
1 | a | H | 84 |
2 | b | OMe | 63 |
3 | c | Me | 54 |
4 | d | CH2CH2Ph | 64 |
5 | e | CHCHPh | 70 |
6 | f | Ph | 54 |
7 | g | 3,5-OMe2C6H3 | 58 |
8 | h | Br | 73 |
Isolated after silica gel chromatography.