Table 1 Catalytic performance under different conditions.

THF, tetrahydrofuran.

EntryOutput
(W)
CatalystTemperature
(°C)
SolventConversion
(%)
ee
(%)
Substrate: 3-phenylpropionaldehyde*
1200S-HL0DMF50+78
2200R-HL20DMF52−72
3200S-HL20DMF55+74
425S-HL20DMF8nd
525S-Zn-MOF20DMF40+55
625R-Zn-MOF20DMF38−53
725S-Zr-MOF20DMF46+64
825R-Zr-MOF20DMF47−66
925S-Ti-MOF20DMF95+84
1025R-Ti-MOF20DMF98−85
1125S-Ti-MOF0DMF90+87
1225S-Ti-MOF20THF21+45
1325S-Ti-MOF20CH3CN43+56
14S-Ti-MOF20DMF5nd
152520DMF0nd
Substrate: cis-6-nonenal*
1625S-Ti-MOF20DMF97+85
1725R-Ti-MOF20DMF98−84

*Catalytic condition: catalyst (0.025 mmol, 0.05 equiv), alkyl bromide (0.5 mmol, 1 equiv), aldehyde (1.0 mmol, 2 equiv), 2,6-lutidine (1.0 mmol, 2 equiv), and solvent (1 ml) under light irradiation for 20 hours. Light source was 8 cm away from the reaction vessel.

†Light source used in all reaction was an output tunable xenon lamp housed with a filter to cut off the light at <400 nm.

‡nd, not detected; ee value was tested following the reported method.