35947-99-0Relevant articles and documents
Electrochemical Difunctionalization of Styrenes via Chemoselective Oxo-Azidation or Oxo-Hydroxyphthalimidation
Jiang, Haobin,Wang, Feng,Ye, Zenghui,Zhang, Fengzhi,Zhu, Rongjin
supporting information, p. 8240 - 8245 (2021/11/17)
Atom- and step-economic oxo-azidation and oxo-hydroxyphthalimidation of styrenes have been developed under mild electrolytic conditions, respectively. Various valuable alpha-azido or hydroxyphthalimide aromatic ketones were synthesized efficiently from readily available styrenes, azides, and N-hydroxyphthalimides. Mechanism studies show that two different pathways involved in these two transformations.
Chemo- and Enantioselective Oxidative α-Azidation of Carbonyl Compounds
Hattori, Yuhei,Ishihara, Kazuaki,Sahara, Naoto,Tsukahara, Mayuko,Uyanik, Muhammet
supporting information, p. 17110 - 17117 (2020/08/10)
We report high-performance I+/H2O2 catalysis for the oxidative or decarboxylative oxidative α-azidation of carbonyl compounds by using sodium azide under biphasic neutral phase-transfer conditions. To induce higher reactivity especially for the α-azidation of 1,3-dicarbonyl compounds, we designed a structurally compact isoindoline-derived quaternary ammonium iodide catalyst bearing electron-withdrawing groups. The nonproductive decomposition pathways of I+/H2O2 catalysis could be suppressed by the use of a catalytic amount of a radical-trapping agent. This oxidative coupling tolerates a variety of functional groups and could be readily applied to the late-stage α-azidation of structurally diverse complex molecules. Moreover, we achieved the enantioselective α-azidation of 1,3-dicarbonyl compounds as the first successful example of enantioselective intermolecular oxidative coupling with a chiral hypoiodite catalyst.
Method for preparing alpha-azidoketone compounds based on photocatalysis
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Paragraph 0178; 0179; 0180, (2018/10/11)
The invention discloses a method for preparing alpha-azidoketone compounds based on photocatalysis. The method is based on a reaction formula shown in the description, wherein R is optionally-substituted aryl, heteroaryl or 1-12 carbon alkyl; R is o