Homotransmetallation des halogeno-3 pyridines bromees en -2 ou -4 par le n-butyllithium. proposition d'un nouveau mecanisme de telesubstitution du brome
Phosphonium Salts as Pseudohalides: Regioselective Nickel‐Catalyzed Cross‐Coupling of Complex Pyridines and Diazines
作者:Xuan Zhang、Andrew McNally
DOI:10.1002/anie.201704948
日期:2017.8.7
traditional cross‐coupling methods. An alternative approach is presented where pyridines and diazines are converted into heteroaryl phosphonium salts and coupled with aryl boronic acids. Nickel catalysts are unique for selective heteroaryl transfer, and the reaction has a broad substrate scope that includes complex pharmaceuticals. Phosphonium ions also display orthogonal reactivity in cross‐couplings compared
MALLET M.; QUEGUINER G., TETRAHEDRON, 42,(1986) N 8, 2253-2262
作者:MALLET M.、 QUEGUINER G.
DOI:——
日期:——
BICYCLIC IMIDAZOLO DERIVATIVE
申请人:Sumitomo Dainippon Pharma Co., Ltd.
公开号:US20180044343A1
公开(公告)日:2018-02-15
Disclosed are compounds, having the following structure, useful as inhibitors of Phosphodiesterase 1 (PDE1), compositions comprising the compounds, and methods of using the same.
[DE] VERFAHREN ZUR HERSTELLUNG FLUORIERTEN HETEROCYCLISCHEN ALIPHATISCHER VERBINDUNGEN<br/>[EN] METHOD FOR PRODUCING FLUORINATED HETEROCYCLIC ALIPHATIC COMPOUNDS<br/>[FR] PROCÉDÉ DE FABRICATION DE COMPOSÉS ALIPHATIQUES HÉTÉROCYCLIQUES FLUORÉS
申请人:UNIV MUENSTER WESTFAELISCHE WILHELMS
公开号:WO2019162391A1
公开(公告)日:2019-08-29
Die vorliegende Erfindung betrifft ein neuartiges Verfahren zur Herstellung fluorierter heterocyclischer aliphatischer Verbindungen aus den analogen aromatischen Verbindung durch Hydrierung mit einem Rh-Katalysatorsystem.