AbstractVarious anodic substitution reactions such as fluorination, methoxylation, acetoxylation, and cyanation of heteroatom compounds containing a sulfur or nitrogen atom were comparatively studied using boron‐doped diamond (BDD), Pt, and glassy carbon (GC) anodes. It was found that BDD anode is highly effective for these anodic substitution reactions similarly to Pt anode although both BDD and GC electrodes are carbon‐based materials.
Direct
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Alkylation/Fluoroalkylation of Amines Using Carboxylic Acids via Transition‐Metal‐Free Catalysis
作者:Chunlei Lu、Zetian Qiu、Maojie Xuan、Yan Huang、Yongjia Lou、Yiling Zhu、Hao Shen、Bo‐Lin Lin
DOI:10.1002/adsc.202000679
日期:2020.10.6
scalable protocol of direct N‐mono/di‐alkyl/fluoroalkylation of primary/secondary amines has been constructed with various carboxylicacids as coupling agents under the catalysis of a simple air‐tolerant inorganic salt, K3PO4. Advantageous features include 100 examples, 10 drugs and drug‐like amines, fluorinated complex tertiary amines, gram‐scale synthesis and isotope‐labelling amine, thus demonstrating
在简单的耐空气无机盐K 3 PO 4的催化下,已使用各种羧酸作为偶联剂构建了伯/仲胺直接N-单/二烷基/氟烷基化的可扩展方案。有利的特征包括100种实例,10种药物和类药物胺,氟化复杂的叔胺,克级合成和同位素标记胺,因此证明了该方法在工业上的潜在适用性。与减少酰胺中间体所需的传统反应性金属氢化物或硼氢化物相比,反应性较小的氢化硅的参与可能有助于显着的官能团相容性。
Electrolytic transformation of fluoroorganic compounds. 5. Anodic cyanation of 2,2,2-trifluoroethylamines