Journal
ACS CATALYSIS
Volume 6, Issue 8, Pages 4989-4994Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b01261
Keywords
cofactor regeneration; flavin; organocatalysis; aerobic oxidation; enzyme catalysis; metal-free catalysis
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Funding
- Program for Changjiang Scholars and Innovative Research Team in University [IRT_14R28]
- National Natural Science Foundation of China [21390204, 21406110]
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
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The application of synthetic flavinium organocatalysts for the in situ regeneration of oxidized cofactors NAD(P)(+) using O-2 as the terminal oxidant without any special illumination or equipment is reported. With the aid of the highly active bridged flavinium catalyst, the rate of NAD(P)H oxidation is accelerated by 3 orders of magnitude. The results show that the catalytic activity of the bridged flavinium catalyst is not dependent on light but on only oxygen. Furthermore, this catalyst is compatible with various preparative enzymatic oxidation reactions. A hydride transfer mechanism is proposed for the presented system.
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