Table 2.
Entry | Solventa | Yield (%)b | Entry | Solventc | Yield (%)b |
---|---|---|---|---|---|
1 pH | 5.0 | 69 | 5 | 50% v/v MeOH | 80 |
2 pH | 6.0 | 88 | 6 | 50% v/v CH3CN | 74 |
3 pH | 7.0 | 91 | 7 | 50% v/v DMF | 75 |
4 pH | 8.0 | 71 | 8 | 1% v/v DMSO | 74 |
9 | 20% v/v E.G. | 78 |
10 mM sodium phosphate buffer.
Isolated yield.
In 10 mM sodum phosphate buffer, pH 7.0. E.G. = ethylene glycol.