中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-(4-吗啉基)-2-(4-吡啶基)乙硫酮 | 1-(morpholin-4-yl)-2-(pyridin-4-yl)ethanethione | 35081-79-9 | C11H14N2OS | 222.311 |
For the synthesis of 4-dialkylaminoethylpyridines two reactions were employed, namely, the Mannich condensation of 4-methylpyridine with formaldehyde and secondary amines, and the addition of secondary amines across the double bond of the 4-vinylpyridine.In the first reaction with diethyl-, di-isopropyl-, di-n-butylamine, pyrrolidine, and morpholine, normal Mannich bases (IV-VIII) were obtained. The unsaturated bases (X, XI) were the reaction products when dimethylamine and piperidine were used. The addition of those products 1,3-bis-(dialkylamino)-2-(4′-pyridyl)-propanes (XII, XIII) were formed when dimethyl-and diethylamine were applied.The structures of the normal Mannich bases were confirmed by the synthesis of several compounds (III, IV, VII–IX) from 4-vinylpyridine and secondary amines.