Couture, Axel published the artcileA convenient synthetic methodology for the elaboration of the pyrido[2,3-b]- or -[3,4-b]pyrazine and -[1,4]diazepine skeletons, Application of 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, the publication is Synthesis (1991), 982-4, database is CAplus.
The condensation of the anion of (acylamino)chloropyridines I (X, Y = N, CH; R = H, Me; R1 = H, Cl) with R2CHCl(CH2)nNMe2·HCl gave efficiently tetrahydropyridopyrazines II (n = 1) and tetrahydropyridodiazepines II (n = 2).
Synthesis published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C5H13Cl2N, Application of 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride.
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https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics