Synthesis of aminopyridines from 2-fluoropyridine and lithium amides
作者:Lubov Pasumansky、Armando R. Hernández、Soya Gamsey、Christian T. Goralski、Bakthan Singaram
DOI:10.1016/j.tetlet.2004.06.132
日期:2004.8
Lithiumamides promote the amination of 2-fluoropyridine under mild reaction conditions, providing 2-aminopyridines in good yields and purity. Treatment of 2-fluoropyridine with 1 equiv of lithium amide at room temperature affords complete conversion after 2 h. To our knowledge, this is the first study of lithium amide-promoted amination of fluoropyridines that are not further activated by electron-withdrawing
[EN] NON-LYSOSOMAL GLUCOSYLCERAMIDASE INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE GLUCOSYLCÉRAMIDASES NON LYSOSOMALES ET LEURS UTILISATIONS
申请人:ALECTOS THERAPEUTICS INC
公开号:WO2021224864A1
公开(公告)日:2021-11-11
The invention provides compounds for inhibiting glucosylceramidases, prodrugs of the compounds, and pharmaceutical compositions including the compounds or prodrugs of the compounds.
Nucleophilic displacement in 2-chloro(trifluoromethyl)pyridines with amines and ammonia
作者:A.D Dunn
DOI:10.1016/s0022-1139(98)00308-x
日期:1999.2
The activating effect of trifluoromethyl groups in 2-chloro(trifluoromethyl)pyridines was investigated by comparing reactions of these compounds and of 2-chloropyridine with secondary cyclic amines. The ammonolysis of 2-chloro-3-trifluoromethylpyridine and 2-chloro-4-trifluoromethylpyridine is also reported and shown to proceed, in contrast to the reported behaviour of 2-chloro-5-trifluoromethylpyridine, without hydrolysis of the trifluoromethyl function. Both 2-amino-3-trifluoromethylpyridine and 2-amino-4-trifluoromethylpyridine were converted (via the corresponding pyridones) to 3-trifluoromethylpyridin-2(1H)-thione and 4-trifluoromethylpyridin-2(1H)-thione, and a number of S-alkyl derivatives of the latter compounds were prepared. (C) 1999 Elsevier Science S.A. All rights reserved.
Electron‐Rich Silicon Containing Phosphinanes for Rapid Pd‐Catalyzed C−X Coupling Reactions**
作者:Sabrina Kräh、Iris Kachel、Oliver Trapp
DOI:10.1002/cctc.202200734
日期:2022.8.19
Ligand design: Electron-rich silicon containing phosphinanes overcome harsh reaction conditions and long reaction times in Pd-catalyzed coupling of heterocycles. The presented new ligand design based on silicon containing phosphacycles enable rapid C−C and C−Ncoupling of heteroatom-containing substrates under mild conditions with excellent yields.