Table 14.
Unisolated yields of compounds 89a,b and conditions | |||||
---|---|---|---|---|---|
# | Solvent | Wavelength of irradiation | |||
254 nm | 300 nm | 350 nm | visible, cool white | ||
90a | MeOH | decomposed | 2 | no reaction | |
MeOH/HOH 1:1, pH = 7 | 68 (16 h) | 42 (16 h) | 2 (16 h) | <1 (16 h) | |
MeOH/HOH 1:1, pH = 9 | decomposed | 52 (16 h) | 8 (16 h) | <1 (16 h) | |
90b | MeOH | 30 (9 h) | 12 (12 h) | 1 (16 h) | no reaction |
MeOH/HOH 1:1, pH = 7 | 100 (2 h) | 100 (6 h) | 21 (16 h) | 2 (16 h) | |
MeOH/HOH 1:1, pH = 9 | 94 (4 h) | 100 (6 h) | 19 (16 h) | 2 (16 h) |
No data were reported of the summarized isolated yields.