Heterocyclic System Containing Bridgehead Nitrogen Atom: Facile One-Pot Synthesis of Imidazo[2,1-b] Thiazoles & Thiazolo[3,2-a]Pyrimidines Using [Hydroxy(p-Tosyloxy)Iodo]Benzene
作者:Jag Mohan、Pratima Verma、Virender Singh
DOI:10.1080/00397919208019311
日期:1992.5
one-pot synthesis of 4,5,6,7-tetrahydrothiazolo[3,2-a]pyrimidines (IIb) and 5,6-dihydro-4H-imidazo[2,1-b]thiazoles (IIa) have been achieved by the reaction of ketones in the presence of[hydroxy(p-tosyloxy)i odo]benzene with 2-mercapto-3,4,5,6-tetrahydropyrimidine (1a) and 2-mercapto-2-imidazoline (Ib) respectively. This method is more convenient and versatile.
摘要 4,5,6,7-
四氢噻唑并[3,2-a]
嘧啶(IIb)和5,6-二
氢-
4H-咪唑并[2,1-b]
噻唑(IIa)的一锅合成通过
酮在[羟基(对
甲苯磺酰
氧基)
碘]
苯存在下分别与 2-巯基-3,4,5,6-四
氢嘧啶 (1a) 和 2-巯基-
2-咪唑啉 (Ib) 反应来实现. 这种方法更加方便和通用。