2767-90-0Relevant articles and documents
LUMO energy of model compounds of bispyridinium compounds as an index for the inhibition of choline kinase
Campos, Joaquin,Del Carmen Nunez, Maria,Rodriguez, Vicente,Entrena, Antonio,Hernandez-Alcoceba, Ruben,Fernandez, Felix,Lacal, Juan Carlos,Gallo, Miguel A,Espinosa, Antonio
, p. 215 - 225 (2001)
Eleven derivatives of 1,1′-[1,2-ethylenebis(benzene-1,4-diylmethylene)]bis(4-pyridinium) dibromides bearing various groups at C-4 of the pyridinium moiety were synthesized and examined for their inhibition of choline kinase (ChoK) and antiproliferative activities. The C-4 substituents include electron-releasing, neutral or electron-withdrawing groups. A one-parameter regression equation has been derived which satisfactorily describes the ex vivo inhibitory potency of ChoK of the title compounds. The electronic effect plays a critical function in the ex vivo inhibition of ChoK although the role of electrostatic interactions could be altered due to a solvation process of both ChoK and ligands.
Methyl-α-d-glucopyranoside as Green Ligand for Selective Copper-Catalyzed N-Arylation
Chen, Fengyang,Chen, Guoliang,Chen, Yuanguang,Du, Fangyu,Zhou, Qifan
, p. 4590 - 4600 (2019/12/11)
In the selective N-arylation of amines or azoles with aryl halidesa-, methyl-α-d-glucopyranoside (MG) was found to function as a green ligand of copper powder. In addition, nitrogen heterocyclic amine compounds can also undergo the N-arylation coupling with heterocyclic aryl chlorides. This process allows access to a variety of aromatic amines and aryl azoles under mild reaction conditions, has good tolerance, and proceeds in moderate to high yield.
Reaction of Nitrogen-Radicals with Organometallics Under Ni-Catalysis: N-Arylations and Amino-Functionalization Cascades
Angelini, Lucrezia,Davies, Jacob,Simonetti, Marco,Malet Sanz, Laia,Sheikh, Nadeem S.,Leonori, Daniele
supporting information, p. 5003 - 5007 (2019/03/17)
Herein, we report a strategy for the generation of nitrogen-radicals by ground-state single electron transfer with organyl–NiI species. Depending on the philicity of the N-radical, two types of processes have been developed. In the case of nucleophilic aminyl radicals direct N-arylation with aryl organozinc, organoboron, and organosilicon reagents was achieved. In the case of electrophilic amidyl radicals, cascade processes involving intramolecular cyclization, followed by reaction with both aryl and alkyl organometallics have been developed. The N-cyclization–alkylation cascade introduces a novel retrosynthetic disconnection for the assembly of substituted lactams and pyrrolidines with its potential demonstrated in the short total synthesis of four venom alkaloids.
An Improved Rapid and Mild Deoxygenation of Amine N-oxides
Rajesh
, p. 486 - 491 (2017/12/29)
An improved mild and selective method for the deoxygenation of a variety of amine N-oxides has been carried out in the presence of silica gel under mild conditions at room temperature to afford corresponding amines in relatively good yields without purification. The reaction is tolerant of a variety of functional groups such as hydroxyl, ester, acid, carbonyl, and cyano groups, as well as halogens. This method would be of great utility to synthesize various pyridines and amines easily.
