Ce(<scp>iii</scp>)-catalyzed highly efficient synthesis of pyridyl benzamides from aminopyridines and nitroolefins without external oxidants
作者:Zhengwang Chen、Xiaowei Wen、Yiping Qian、Pei Liang、Botao Liu、Min Ye
DOI:10.1039/c7ob03113k
日期:——
An efficient Ce(iii)-catalyzed synthesis of amides and oxazolo[4,5-b]pyridines from 2-aminopyridines and nitroolefins via CC bond cleavage has been developed.
Synthesis of Amides by Nucleophilic Substitution of Hydrogen in 3-Nitropyridine
作者:G. A. Amangasieva、I. V. Borovlev、O. P. Demidov、E. K. Avakyan、A. A. Borovleva
DOI:10.1134/s1070428018060076
日期:2018.6
reacted with nitrogen-centered carboxylic acid amide anions in anhydrous DMSO in the presence of K3Fe(CN)6 via oxidative nucleophilicsubstitution of hydrogen to give previously unknown N-(5-nitropyridin-2-yl) carboxamides. The reaction of nitrobenzene with urea anion in DMSO enabled one-pot synthesis of bis(4-nitrophenyl)amine.
Copper(I)-catalysed aerobic oxidative selective cleavage of C C bond with DMAP: Facile access to N-substituted benzamides
作者:Haojie Ma、Guoqiang Lu、Bo Han、Guosheng Huang、Yuqi Zhang、Ji-Jiang Wang
DOI:10.1016/j.tetlet.2021.153199
日期:2021.7
cleavage of C(CO)–C(alkyl) bond to generate N-substitutedbenzamides has been developed in the presence of copper(I) chloride. The usage of inexpensive copper catalyst, broad substrate scope, mild conditions make this protocol very practical. More importantly, this reaction provides an alternative approach for the construction of useful N-substitutedbenzamides.
Metal-free oxidative amidation of aldehydes with aminopyridines employing aqueous hydrogen peroxide
作者:E. Sankari Devi、Anitha Alanthadka、A. Tamilselvi、Subbiah Nagarajan、Vellaisamy Sridharan、C. Uma Maheswari
DOI:10.1039/c6ob01454b
日期:——
The first metal free report on the amidation of aldehydes with aminopyridines was accomplished using simple aqueoushydrogenperoxide (aq. H2O2) as the oxidant. No catalysts or additives were needed for this transformation and the reaction proceeded in water, an environmentally benign reaction medium. Green oxidant and reaction conditions, and the ability to construct diverse N-(pyridin-2-yl)benzamide
关于醛与氨基吡啶酰胺化的第一个无金属报告是使用简单的过氧化氢水溶液(H 2 O 2水溶液)作为氧化剂完成的。该转化不需要催化剂或添加剂,并且反应在环境友好的水介质中进行。绿色的氧化剂和反应条件,以及通过这种优美的方法构建各种N-(吡啶-2-基)苯甲酰胺的能力,使其成为合成这些酰胺的实用替代品。
COMPOUNDS EFFECTING GLUCOKINASE
申请人:BOYD Scott
公开号:US20090227592A1
公开(公告)日:2009-09-10
The invention relates to the use of a compound of Formula (I) or a salt, solvate or prodrug thereof, wherein R
1
, R
2
, R
3
, n and m are as described in the specification, in the preparation of a medicament for the treatment or prevention of a disease condition mediated through glucokinase (GLK), such as type 2 diabetes.
The invention also relates to a novel group of compounds of Formula (I) and to methods for preparing compounds of Formula (I).