Synthesis of amidines and attempted synthesis of imidazoazines by reactions of lithiated β-aminoazines with nitriles
作者:Alan D. Redhouse、Robin J. Thompson、Basil J. Wakefield、Jacklyn A. Wardell
DOI:10.1016/s0040-4020(01)90374-6
日期:1992.9
Deprotonation of 3-aminopyridine, followed by reaction of aromatic nitriles, gives N-(3-pyridyl)-benzamidines, and other β-aminoazines (pyridines, quinolines, pyrazines, pyrimidines) react similarly. Attempts to cyclise the amidines to, for example, 2-aryl-1H-imidazol[4,5-b]pyridines (5) met with limited success.
使3-氨基吡啶去质子化,然后使芳族腈反应,得到N-(3-吡啶基)-苯甲s,而其他β-氨基嗪(吡啶,喹啉,吡嗪,嘧啶)同样反应。将the环化成例如2-芳基-1 H-咪唑[4,5- b ]吡啶(5)的尝试取得了有限的成功。