Lemon juice mediated multicomponent reactions for the synthesis of fused imidazoles
作者:Argha Saha、Asim Jana、Lokman H. Choudhury
DOI:10.1039/c8nj03480j
日期:——
A one-pot three component reaction mediated by lemon juice in an aqueous medium for the synthesis of diverse pharmaceutically important tricyclic fused imidazoles tethered with aryl and various cyclic 1,3-dicarbonyls has been reported. The reaction of arylglyoxals with cyclic 1,3-diacarbonyls such as N-methyl-4-hydroxyquinolone, 2,4-dihydroxyquinoline, 4-hydroxycoumarin or 4-hydroxy-6-methyl-2-pyrone
已经报道了由柠檬汁在水介质中介导的一锅三组分反应,用于合成与芳基和各种环状1,3-二羰基连接的各种药学上重要的三环稠合咪唑。芳基乙二醛与环状1,3-二羰基化合物(例如N-甲基-4-羟基喹啉酮,2,4-二羟基喹啉,4-羟基香豆素或4-羟基-6-甲基-2-吡喃酮)与各种1,3- N的反应,ñ-二亲核试剂,例如2-氨基苯并噻唑或2-氨基苯并咪唑在无金属条件下提供了医学上重要的具有芳基和环状1,3-二羰基取代基的三环稠合咪唑。该方法是一种在水性介质中天然酸催化的多组分反应,以良好至极佳的产率合成了各种三环稠合的咪唑。