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. 2023 Dec 2;14:7992. doi: 10.1038/s41467-023-43791-1

Table 1.

Optimization of the reaction conditionsa

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Entry Electrodes Linkage Light source Current Electrolyte Solvent Yield (%) / 1b Yield (%) / 41b
1 (+)GF/(-)GF w/o 20 W 395-400 nm 4 mA Bu4NBF4 MeCN 48 -
2 (+)GF/(-)GF w/o 20 W 395-400 nm 4 mA Et4NCl MeCN 57 -
3 (+)GF/(-)GF w/o 20 W 395-400 nm 4 mA LiCl MeCN 91 -
4 (+)GF/(-)GF w/o 30 W 395-400 nm 4 mA LiCl MeCN 79 -
5 (+)GF/(-)GF w/o 10 W 395-400 nm 4 mA LiCl MeCN 17 -
6c (+)GF/(-)GF w/o 20 W 395-400 nm 4 mA LiCl MeCN n.d. -
7 (+)GF/(-)Pt w/o 20 W 395-400 nm 4 mA LiCl MeCN 69 -
8 (+)C-rod/(-)GF w/o 20 W 395-400 nm 4 mA LiCl MeCN 27 -
9 (+)GF/(-)GF w/o 20 W 395-400 nm 10 mA LiCl MeCN 56 -
10 (+)GF/(-)GF w 20 W 395-400 nm 4 mA LiCl MeCN 41 22
11d (+)GF/(-)GF w 20 W 395-400 nm 25 mA LiCl MeCN 11 59
12d (+)GF/(-)GF w 20 W 393 nm 25 mA LiCl MeCN 7 82
13d (+)GF/(-)GF w 20 W 393 nm 25 mA LiCl MeCN/Acetone trace 93
14d,e (+)GF/(-)GF w 20 W 393 nm 25 mA LiCl MeCN/Acetone n.d. n.d.
15e (+)GF/(-)GF w/o 20 W 395-400 nm 4 mA LiCl MeCN n.d. n.d.

aReaction conditions: 1a (3 mmol), 2a (0.3 mmol), 3a (0.6 mmol), FeCl3·6H2O (10 mol%), NiBr2·3H2O (10 mol%), 2,2’-bipyridine (10 mol%), LiCl (2.0 equiv.), dry MeCN (6.0 mL), 4 mA, 12 h, 20 W 395-400 nm, argon, graphite felt (GF) as electrodes, undivided cell. bGC yields using biphenyl as an internal standard. cCeCl3 instead of FeCl3·6H2O. d4,4’-di-tert-butyl-2,2’-bipyridine was used as ligand. ew/o paired catalyst or light or electricity. n.d. not detected, w/o without, w with.