Silver(I)‐Catalyzed
<i>N</i>
‐Trifluoroethylation of Anilines and
<i>O</i>
‐Trifluoroethylation of Amides with 2,2,2‐Trifluorodiazoethane
作者:Haiqing Luo、Guojiao Wu、Yan Zhang、Jianbo Wang
DOI:10.1002/anie.201507219
日期:2015.11.23
A straightforward N‐trifluoroethylation of anilines has been developed based on silver‐catalyzedNH insertions with 2,2,2‐trifluorodiazoethane (CF3CHN2). Mechanistically, the reaction is proposed to involve migratory insertion of a silver carbene as the key step. In contrast, when amides are employed as the substrates under similar reaction conditions, O‐trifluoroethylation occurs to afford trifluoroethyl
Reagent and Catalyst Capsules: A Chemical Delivery System for Reaction Screening and Parallel Synthesis
作者:Niginia Borlinghaus、Johannes Kaschel、Johanna Klee、Vanessa Haller、Jasmin Schetterl、Stephanie Heitz、Tanja Lindner、Justin D. Dietrich、Wilfried M. Braje、Anais Jolit
DOI:10.1021/acs.joc.0c02576
日期:2021.1.15
reagents (catalyst, ligand, and base) for three important transition-metal-catalyzed reactions: Buchwald–Hartwig, Suzuki–Miyaura, and metallophotoredox C–N cross-couplingreactions. This encapsulation methodology simplifies the screening of reaction conditions and the preparation of compound libraries using parallel synthesis in organic solvents or aqueous media. These reagents-containing HPMC capsules are
Synthesis of tri(di)fluoroethylanilines <i>via</i> copper-catalyzed coupling reaction of tri(di)fluoroethylamine with (hetero)aromatic bromides
作者:Suo Chen、Hui Wang、Wei Jiang、Pei-Xin Rui、Xiang-Guo Hu
DOI:10.1039/c9ob02271f
日期:——
have realized the first Ullmann type coupling reaction of tri(di)fluoroethylamine with (hetero)aromatic bromides, employing 5–20 mol% Cu2O and an oxalamide ligand [N-(2,4,6-trimethoxyphenyl)acetamide]. This efficient and practical method has the following features: (i) avoids the use of an expensive catalyst; (ii) does not require anhydrous solvent and strict air extrusion; (iii) uses bench stable and
The invention relates to a compound of formula
wherein
Ar
1
, Ar
2
, R
1
, R
2
, R
3
, R
4
, R
5
, and R
5′
or to a pharmaceutically active salt thereof.
The compounds are high potential NK-3 receptor antagonists for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD).
Traceless N‐Polyfluoroalkylation of Weakly Nucleophilic Nitrogen Containing Compounds
作者:Laura Santos、Florian Audet、Morgan Donnard、Armen Panossian、Jean-Pierre Vors、David Bernier、Sergii Pazenok、Frederic R. Leroux
DOI:10.1002/chem.202300792
日期:——
the high cost, toxicity or environmental impact of commonly used polyfluoroalkylation reagents. We report the sulfuryl fluoride (SO2F2)-mediated N-polyfluoroalkylation of weakly nucleophilic nitrogencompounds from readily available fluorinated alcohols. This method opens access to a variety of N-polyfluoroalkylated building blocks that are highly valuable for life science applications.
由于常用多氟烷基化试剂的高成本、毒性或环境影响, N-多氟烷基化反应具有挑战性。我们报告了硫酰氟 (SO 2 F 2 ) 介导的弱亲核氮化合物的N -多氟烷基化,这些化合物来自现成的氟化醇。该方法开启了对各种N-多氟烷基化构建块的访问,这些构建块对生命科学应用具有很高的价值。