本工作说明了在室温下使用环境友好的碳酸二甲酯(DMC)作为溶剂,H 2 O 2作为氧化剂对硼酸进行氧化的简便有效的方法。与以前的反应报告相反,该报告使用了引起环境问题的金属催化剂,有害试剂和氧化剂。该方法提供了良好或优异的产物收率,并且对硼酸上存在的各种官能团表现出更好的耐受性。而且,就廉价,无毒和容易的反应条件而言,这种发达的方法是一种替代方法。
Facile and effective approach for oxidation of boronic acids
作者:Ravindra B. Wagh、Jayashree M. Nagarkar
DOI:10.1016/j.tetlet.2017.10.059
日期:2017.11
This present work illustrates facile and effective approach for oxidation of boronic acids using environmentally benign dimethyl carbonate (DMC) as a solvent with H2O2 as an oxidant at room temperature. In contrast to previous reaction reports, which make use of metal catalyst, hazardous reagent and oxidants that creates environmental concern. This method provides good to excellent yield of products
本工作说明了在室温下使用环境友好的碳酸二甲酯(DMC)作为溶剂,H 2 O 2作为氧化剂对硼酸进行氧化的简便有效的方法。与以前的反应报告相反,该报告使用了引起环境问题的金属催化剂,有害试剂和氧化剂。该方法提供了良好或优异的产物收率,并且对硼酸上存在的各种官能团表现出更好的耐受性。而且,就廉价,无毒和容易的反应条件而言,这种发达的方法是一种替代方法。
Rigid Luminescent Bis-Zinc(II)-Bis-Cyclen Complexes for the Detection of Phosphate Anions and Non-Covalent Protein Labeling in Aqueous Solution
作者:Mouchumi Bhuyan、Evgeny Katayev、Stefan Stadlbauer、Hiroshi Nonaka、Akio Ojida、Itaru Hamachi、Burkhard König
DOI:10.1002/ejoc.201100103
日期:2011.5
water-soluble bis- and tetrakis-ZnII–cyclen complexes with rigid structures was prepared to enhance the carboxylate and phosphate ion binding response in contrast to analogues with less-confined molecular structures. Boc-protected 6-chloro-1,3,5-triazine–bis-cyclen was coupled to different aryl and alkyl moieties in moderate to high yields and subsequently converted into the corresponding bis- or tetrakis-ZnII–cyclen
[EN] PHENALKYLAMINES AND METHODS OF MAKING AND USING THE SAME<br/>[FR] PHÉNALKYLAMINES ET LEURS PROCÉDÉS DE FABRICATION ET D'UTILISATION
申请人:GILGAMESH PHARMACEUTICALS INC
公开号:WO2022192781A1
公开(公告)日:2022-09-15
The present disclosure provides phenalkylamine compounds and their use in treating medical disorders, such as psychiatric diseases and disorders. Pharmaceutical compositions and methods of making various phenalkylamine compounds are provided.
Visible light as a sole requirement for alkylation of α-C(sp<sup>3</sup>)–H of <i>N</i>-aryltetrahydroisoquinolines with alkylboronic acids
作者:Feihu Cong、Wenjing Zhang、Gan Zhang、Jie Liu、Yicheng Zhang、Chao Zhou、Lei Wang
DOI:10.1039/d3ob01154b
日期:——
developed under visible-light irradiation in the absence of additional photocatalyst. The reaction proceeded well, tolerating a variety of functional groups, and featured low-cost and mild reaction conditions. A preliminary mechanistic study indicated that an electron donor–acceptor (EDA) complex between an electron-rich N-aryltetrahydroisoquinoline and an electron-poor alkylboronic acid was involved
Energy-Transfer-Enabled Radical Acylation Using Free Alkyl Boronic Acids through Photo and NHC Dual Catalysis
作者:Wan-Cong Liu、Xiang Zhang、Lin Chen、Rong Zeng、Yuan-Hang Tian、En-Dian Ma、Ya-Peng Wang、Bin Zhang、Jun-Long Li
DOI:10.1021/acscatal.3c06027
日期:2024.3.1
for ketone synthesis. As an important coupling partner, bench-stable and commercially available alkyl boronicacids are widely used in transition metal catalysis, but they are rarely utilized as radical precursors for acylative coupling reactions. Herein, we reported an energy-transfer-enabled radical acylation using free alkyl boronicacids via NHC/photo dual catalysis. This protocol could efficiently