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首页> 外文期刊>Catalysis science & technology >Light-driven biocatalytic reduction of alpha,beta-unsaturated compounds by ene reductases employing transition metal complexes as photosensitizers
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Light-driven biocatalytic reduction of alpha,beta-unsaturated compounds by ene reductases employing transition metal complexes as photosensitizers

机译：Light-driven biocatalytic减少α,beta-unsaturated烯化合物还原酶采用过渡金属配合物作为敏化

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摘要

Efficient and cost effective nicotinamide cofactor regeneration is essential for industrial-scale bio-hydrogenations employing flavin-containing biocatalysts such as the Old Yellow Enzymes. A direct flavin regeneration system using visible light to initiate a photoredox cycle and drive biocatalysis is described, and shown to be effective in driving biocatalytic activated alkene reduction. Using Ru(II) or Ir(III) complexes as photo-sensitizers, coupled with an electron transfer mediator (methyl viologen) and sacrificial electron donor (triethanolamine) drives catalytic turnover of two Old Yellow Enzymes with multiple oxidative substrates. Therefore, there is great potential in the development of light-driven biocatalytic systems, providing an alternative to the reliance on enzyme-based cofactor regeneration systems.
机译：高效和成本有效的烟酰胺代数余子式再生对工业规模至关重要bio-hydrogenations用人flavin-containing老黄酶等生物催化剂。直接使用可见黄素再生系统启动photoredox光周期和开车生物催化,列示有效地推动biocatalytic激活烯烃的减少。photo-sensitizers复合物,再加上一个电子转移中介(甲基紫罗碱)和牺牲电子供体(三乙醇胺)驱动器催化周转率两个老黄与多个氧化底物酶。因此,有巨大的潜力发展light-driven biocatalytic系统,提供另一种依赖enzyme-based辅因子再生系统。

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