A visible-light-driven silyl radical generation method from silylboronates has been developed. The activation of silylboronates with a catalytic amount of mild base promoted the single-electron oxidation process to form silyl radicals. Facile single electron transfer for the borate form readily occurred without hydrogen atom transfer for hydrosilane in the presence of various photoredox catalysts. Combining this protocol with radical-mediated N-heterocyclic carbene catalysis enabled the acylsilylation of alkenes via a radical relay process with silyl radical generation. Furthermore, the recent advanced methods for the synthesis of silylboronates significantly improved the utility of this silyl radical generation process.

中文翻译：

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有机光氧化还原催化甲硅烷基硼酸盐的生成

已经开发了一种由甲硅烷基硼酸盐产生可见光驱动的甲硅烷基自由基的方法。用催化量的温和碱活化甲硅烷基硼酸酯促进了单电子氧化过程形成甲硅烷基自由基。在各种光氧化还原催化剂的存在下，硼酸盐形式的简单单电子转移很容易发生，而氢硅烷没有氢原子转移。将该协议与自由基介导的 N-杂环卡宾催化相结合，通过自由基中继过程与甲硅烷基自由基产生，使烯烃的酰基化成为可能。此外，最近用于合成甲硅烷基硼酸盐的先进方法显着提高了这种甲硅烷基自由基生成过程的效用。