PhotoRedOx Duo


The EvoluChem™ PhotoRedOx Duo is using the same unique design as the PhotoRedOx Box. PhotoRedOx Duo increases the reaction vials capacity to 16 vials (2, 4 or 8 ml) using 2 of the same vial holders as the PhotoRedOx box. Using the 2 blue LED setup allows to increase reaction rate of difficult reaction conditions.

PhotoRedOx Duo

Test reaction


Time to 95% conversion: Mono 360 min, Duo 45 min

Reaction protocol

In duplicate in a 4-ml vial equipped with a teflon septa and 2×7 mm stir bar, were weighed 4-bromoacetophenone (4.95 mg, 25 µmol) and potassium benzyltrifluoroborate (4.50 mg, 25 µmol, 1 equiv.). To this vial was added a 1.0 ml solution in DMA containing NiCl2-dme (1.1 mg, 5 µmol, 0.1 mol %), dtbbpy (1.3 mg, 5 µmol, 0.1 mol %) and Ir(dF-CF3-ppy)2(dtbpy) (1.12 mg, 1 µmol, 0.02 mol %) followed by addition of 2,6-lutidine (17.5 µl, 150 µmol, 6 equiv.) . The solution was sparged with nitrogen via submerged needle for 5 minutes and vial was placed in EvoluChem photoreactor with blue Kessil 34W LED or reactor with two blue kessil 34W. Reaction time course was monitored at 0, 5, 15, 45, 120, 240, and 360 minutes.

Conversion: Mono vs Duo


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