Table 2.
| |||
---|---|---|---|
entry | R1 | R2 | amide (%)a |
1b | phenyl | phenyl | 74 |
2b | phenyl | p-tolyl | 77 |
3b | phenyl | 63 | |
4b | phenyl | 4-phenoxyphenyl | 68 |
5b | phenyl | 3-formylphenyl | ~10d |
6b | phenyl | E–β-styryl | traced |
7c | 3-methoxyphenyl | p-tolyl | 58 |
8c | (4-CF3)Ph | p-tolyl | 81 |
9c | benzyl | p-tolyl | 76 |
10c | 1-naphthyl | p-tolyl | 65 |
Isolated yield.
Hexanes/THF (1:1) as solvent.
THF as solvent.
GC/MS analysis using nonadecane as an internal standard.