Synthesis of N- aryl and N -heteroaryl hydroxylamines via partial reduction of nitroarenes with soluble nanoparticle catalysts
作者:Jefferson H. Tyler、S. Hadi Nazari、Robert H. Patterson、Venkatareddy Udumula、Stacey J. Smith、David J. Michaelis
DOI:10.1016/j.tetlet.2016.11.105
日期:2017.1
ruthenium nanoparticles enable the selective hydrazine-mediated reduction of nitroarenes to hydroxylamine products in high yield and selectivity. Key to obtaining the hydroxylamine product in good yield was the use of organic solvents capable of solubilizing the polystyrene-supported nanoparticle catalyst. N-aryl and N-heteroaryl hydroxylamines are generated under exceptionally mildconditions and in
Para-aryl or heterocyclic substituted phenyl glucokinase activators
申请人:——
公开号:US20020002190A1
公开(公告)日:2002-01-03
Para-aryl or heteroaryl substituted phenyl amides which are active as glucokinase activators to increase insulin secretion which makes them useful for treating type II diabetes.
2,3-Di-substituted N-heteroaromatic propionamides with said substitution at the 2-position being a substituted phenyl group and at the 3-position being a cycloalkyl ring, said propionamides being glucokinase activators which increase insulin secretion in the treatment of type II diabetes.
situ-generated cationic platinum(II)/rac-BINAP complex catalyzes the intramolecular dearomative 5-endo spirocyclization of N-(methylnaphthalenyl)propiolamides via the deprotonation–protonation sequence (formal aromatic ene reaction). Mechanisticstudies revealed that our previously reported dearomative 6-endo cyclization followed by the Friedel–Crafts reaction is kinetically and thermodynamically unfavored
Disclosed herein are pyrazole glucokinase activators of the formula (I)
useful for the treatment of metabolic diseases and disorders, preferably diabetes mellitus.