Aminomethylation of 5-substituted 6-amino-2-oxo-1,2-dihydropyridine-3-carbonitriles
摘要:
A number of 3,9-substituted 6-oxo-1,3,4,6-tetrahydro-2H-pyrido[1,2-a][1,3,5]triazine-7-carbonitriles were synthesized by reaction of 5-R-6-amino-2-oxo-1,2-dihydropyridine-3-carbonitriles with primary amines and excess formaldehyde.
Microwave Irradiation–Assisted Amination of 2-Chloropyridine Derivatives with Amide Solvents
摘要:
A simple, quick, and high-yielding microwave-assisted synthesis of 2-(N,N-dimethyl)amine- and 2-aminopyridine derivatives is reported here for the first time in the reaction of 2-chloro substituted pyridines with amide solvents such as dimethylformamide or formamide, without transition-metal catalysts.