Visible-Light-Induced Chemoselective Deboronative Alkynylation under Biomolecule-Compatible Conditions,Journal of the American Chemical Society

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Visible-Light-Induced Chemoselective Deboronative Alkynylation under Biomolecule-Compatible Conditions
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2014-02-03 , DOI: 10.1021/ja413208y
Hanchu Huang ₁ , Guojin Zhang ₁ , Li Gong ₁ , Shuaiyan Zhang ₁ , Yiyun Chen ₁

Affiliation

Here, we report a visible-light-induced deboronative alkynylation reaction, which is redox-neutral and works with primary, secondary and tertiary alkyl trifluoroborates or boronic acids to generate aryl, alkyl and silyl substituted alkynes. This reaction is highly chemoselective and performs well on substrates containing alkenes, alkynes, aldehydes, ketones, esters, nitriles, azides, aryl halides, alkyl halides, alcohols, and indoles, with no detectable occurrence of side reactions. The mechanism of this novel C(sp(3))-C(sp) bond coupling reaction was investigated by luminescence quenching, radical trapping, on-off light, and (13)C-isotopic-labeling experiments. This reaction can be performed in neutral aqueous conditions, and it is compatible with amino acids, nucleosides, oligosaccharides, nucleic acids, proteins, and cell lysates.

中文翻译：

生物分子兼容条件下的可见光诱导化学选择性脱硼炔化

在这里，我们报告了可见光诱导的脱硼炔化反应，该反应是氧化还原中性的，可与伯、仲和叔烷基三氟硼酸盐或硼酸一起生成芳基、烷基和甲硅烷基取代的炔烃。该反应具有高度的化学选择性，在含有烯烃、炔烃、醛、酮、酯、腈、叠氮化物、芳基卤、卤代烷、醇和吲哚的底物上表现良好，没有可检测到的副反应发生。这种新型 C(sp(3))-C(sp) 键偶联反应的机制通过发光淬灭、自由基捕获、开关灯和 (13) C-同位素标记实验进行了研究。该反应可在中性水性条件下进行，并且与氨基酸、核苷、寡糖、核酸、蛋白质和细胞裂解物相容。

更新日期：2014-02-03

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