cross-coupling reaction has been developed under mild electrolytic conditions. In this atom- and step-economical one-pot process, valuable 1,2,4-triazolo[4,3-a]pyridines and related heterocyclic compounds could be synthesized efficiently from commercially available aliphatic or (hetero)aromatic aldehydes and 2-hydrazinopyridines. Various functional groups are compatible with this metal- and oxidant-free
在温和的电解条件下已开发出无试剂的分子内脱氢C–N交叉偶联反应。在这种原子经济和一步经济的一锅法中,有价值的1,2,4-三唑并[4,3- a ]吡啶和相关的杂环化合物可以从可商购的脂族或(杂)芳族醛和2-肼基吡啶。各种官能团都与这种无金属和无氧化剂的方案兼容,可以轻松地以克为单位进行操作。这种新方法被应用于最畅销药物Xanax的合成和后期功能化,以在生物学相关的先导分子中产生化学多样性。
A Convenient Synthesis of New 3,7-Diphenylthieno[3,2-e]bis[1,2,4] triazolo[4,3-a:4',3'-c]pyrimidine Derivatives by Oxidative Cyclization Using Alumina-supported Calcium Hypochlorite
作者:Hoon-Young Son、Yang-Heon Song
DOI:10.5012/bkcs.2010.31.8.2242
日期:2010.8.20
New 3,7-diphenylthieno[3,2-e]bis[1,2,4]triazolo[4,3-a:4',3'-c]pyrimidine derivatives were easily synthesized at room temperature in good yield by the oxidativecyclization of thienopyrimidinyl hydrazones with alumina-supported calcium hypochlorite (Ca(OCl) 2 /Al 2 O 3 ).
新的 3,7-二苯基噻吩并[3,2-e]双[1,2,4]三唑并[4,3-a:4',3'-c]嘧啶衍生物在室温下很容易合成,收率良好。噻吩并嘧啶腙与氧化铝负载的次氯酸钙 (Ca(OCl) 2 /Al 2 O 3 ) 的氧化环化。
“Click” Chemistry for the Functionalization of Graphene Oxide with Phosphorus Dendrons: Synthesis, Characterization and Preliminary Biological Properties
作者:Omar Alami、Régis Laurent、Marine Tassé、Yannick Coppel、Jérôme Bignon、Saïd El Kazzouli、Jean‐Pierre Majoral、Nabil El Brahmi、Anne‐Marie Caminade
DOI:10.1002/chem.202302198
日期:2023.11.24
Several dendrons were functionalized on their surface by different types of pyridine-imine functions, and at their core by either azide or alkyne. These dendrons were grafted to graphene oxide (GO) via “click” reactions between azide or alkyne at their core, and alkynes or azides on the surface of GO, respectively. The biological properties of these new materials were tested.