STUDIES WITH POLYFUNCTIONALLY SUBSTITUTED HETEROAROMATICS, A NEW ROUTE TO SYNTHESIS OF THIOPYRANO[3,2-C]PYRIDINE, THIOPYRANO[4,3-B]PYRIDINE, AND BIPYRIDYL DERIVATIVES
作者:Fathi A. Abu-shanab、Mohamed R. Selim、Basil J. Wakefield、Mohamed H. Elnagdi
DOI:10.1080/10426509708033707
日期:1997.11
Abstract Pyridine derivatives (4a, d, e) were reacted with carbon disulfide in dry tetrahydrofurane (THF) in the presence of potassium tert-butoxide under Argon to yield thiopyanopyridine derivatives (7, 10). Also (2a, 4c) were reacted with carbon disulfide under the same condition producing the dithioacetal derivatives (13) which were converted to hipyridyl derivatives (14) via reaction with cyanothioacetamide
摘要
吡啶衍生物 (4a, d, e) 在无
水四氢呋喃 (THF) 中,在
叔丁醇钾存在下,在
氩气下与
二硫化碳反应,生成
噻吩并
吡啶衍生物 (7, 10)。同样(2a,4c)在相同条件下与
二硫化碳反应,产生二
硫代
缩醛衍
生物(13),通过在
异丙醇和
异丙醇钠中与
氰硫代乙酰胺反应将其转化为
吡啶基衍
生物(14)。