60138-76-3Relevant articles and documents
A Novel One-Pot Synthesis of N,N-Dimethylaminopyridines by Diazotization of Aminopyridines in Dimethylformamide in the Presence of Trifluoromethanesulfonic Acid
Filimonov, V. D.,Krasnokutskaya, E. A.,Potapova, M. I.,Sanzhiev, A. N.
, p. 1023 - 1028 (2020/07/25)
Abstract: Diazotization of aminopyridines in the presence of trifluoromethanesulfonic acid gives the corresponding pyridinyl trifluoromethanesulfonates instead of expected diazonium salts. Pyridinyl trifluoromethanesulfonates can be converted to N,N-dimethylaminopyridines on heating in dimethylformamide via replacement of the trifluoromethanesulfonyloxy group. The reaction is accelerated under microwave irradiation. A novel one-pot procedure has been proposed for the synthesis of 2- and 4-(dimethylamino)pyridines from commercially available aminopyridines. The procedure provides high yields of the target products, and it can be regarded as an alternative to the known methods of synthesis of N,N-dimethylpyridin-4-amine (DMAP) widely used as base catalyst in organic synthesis.
Microwave irradiation-assisted amination of 2-chloropyridine derivatives with amide solvents
Samadi, Abdelouahid,Silva, Daniel,Chioua, Mourad,Carreiras, Maria Do Carmo,Marco-Contelles, Jose
experimental part, p. 2859 - 2869 (2011/09/12)
A simple, quick, and high-yielding microwave-assisted synthesis of 2-(N,Ndimethyl) 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. Taylor & Francis Group, LLC.
Microwave-induced by-products in the synthesis of 2-(4-methyl-2-phenylpiperazinyl)pyridine-3-carbonitrile
Lamazzi, Christelle,Dreau, Armelle,Bufferne, Christel,Flouzat, Christine,Carlier, Patrick,ter Halle, Rob,Besson, Thierry
scheme or table, p. 4502 - 4505 (2009/11/30)
The Letter describes the investigation of an industrial reaction of N-methylphenylpiperazine and chloronicotinonitrile, under microwave heating. Besides the formation of the expected 2-(4-methyl-2-phenylpiperazinyl)pyridine-3-carbonitrile (4), extension o