Table 2.
Product Yields from Photolysis of Radical Cation Precursor NMe-6
| % yielda | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| conditionsb | NMe-13 | NMe-14 | 27 | 28 | NMe-16 | NMe-17 | NMe-T | NMe-6 | mass balance |
| H2O | 15.5 ± 1.7 | 7.7 ± 1.1 | 7.2 ± 0.2 | 4.8 ± 1.1 | 5.4 ± 0.5 | 3.5 ± 0.3 | 33.4 ± 0.3 | 7.3 ± 6.5 | 84.8 ± 3.0 |
| BMEc | 3.8 ± 2.6 | 13.2 ± 3.5 | 2.6 ± 0.5 | 1.8 ± 0.6 | 1.6 ± 0.4 | 1.5 ± 0.2 | 71.4 ± 1.1 | 6.5 ± 6.7 | 102.4 ± 7.2 |
| BMEd(after hν) | 4.4 ± 3.7 | 17.8 ± 0.6 | 8.4 ± 0.8 | 5.3 ± 0.6 | 7.0 ± 0.6 | 4.5 ± 0.6 | 33.4 ± 0.3 | 2.8 ± 0.4 | 83.7 ± 1.4 |
| pH 5.0 (Chelex) | 9.0 ± 0.1 | 6.5 ± 0.3 | 3.1 ± 0.2 | 6.1 ± 0.1 | 3.8 ± 0.1 | 3.2 ± 0.2 | 28.1 ± 0.1 | 7.6 ± 6.9 | 67.3 ± 6.3 |
| pH 5.0 | 9.5 ± 0.4 | 6.8 ± 0.1 | 3.3 ± 0.1 | 6.4 ± 0.2 | 3.9 ± 0.1 | 3.6 ± 0.4 | 28.6 ± 0.5 | 7.4 ± 7.1 | 69.3 ± 6.0 |
| pH 7.2 | 20.8 ± 1.9 | 10.6 ± 1.1 | 3.3 ± 0.4 | 3.0 ± 0.5 | 4.3 ± 0.3 | 5.9 ± 0.1 | 32.5 ± 0.4 | 8.1 ± 7.0 | 88.5 ± 5.8 |
| pH 8.0 | 18.0 ± 0.3 | 11.2 ± 0.4 | 3.4 ± 0.3 | 2.8 ± 0.2 | 2.4 ± 0.1 | 6.2 ± 0.5 | 32.7 ± 0.2 | 8.8 ± 7.7 | 85.5 ± 7.0 |
a
Yields and mass balances are the average ± standard deviation of at least 3 measurements.
b
All experiments were carried out in a 1:1 (v/v) mixture of CH3CN and the solvent listed.
c
[BME] = 10 mM.
d
[BME] = 100 mM at 37 °C for 1 h.