Entry
R1
R2
monoalkylated β-diketone 1
Yield (%)
1
Me
COOMe
90
2
Me
COOEt
88
3
Me
CH2-COOEt
73
4
Me
Ph
61
5
Ph
COOMe
89
| Entry | R1 | R2 | monoalkylated β-diketone 1 | Yield (%) |
| 1 | Me | COOMe |
| 90 |
| 2 | Me | COOEt |
| 88 |
| 3 | Me | CH2-COOEt |
| 73 |
| 4 | Me | Ph |
| 61 |
| 5 | Ph | COOMe |
| 89 |