Novel one-pot synthesis of 1-alkyl-2-(aryloxy)methyl-1H-pyrrolo[2,3-b]quinoxalines via copper-free Sonogashira coupling reaction
作者:Ali Keivanloo、Mahsa Fakharian、Mohammad Reza Nabid、Amir Hossein Amin
DOI:10.1007/s13738-018-1492-y
日期:2019.1
efficient protocol is described for the synthesis of 1-alkyl-2-(aryloxy)methyl-1H-pyrrolo[2,3-b]quinoxalines via the one-pot reaction of phenol or 2-naphthol derivatives, propargyl bromide, and N-alkyl-3-chloroquinoxaline-2-amines in the presence of palladium catalyst. This one-pot reaction is carried out in the absence of any copper salt at room temperature. The reaction product is dependent on the nature
摘要描述了一种新颖,简单而有效的方案,用于通过苯酚或2-萘酚衍生物的一锅反应合成1-烷基-2-(芳氧基)甲基-1 H-吡咯并[2,3- b ]喹喔啉,炔丙基溴和N-烷基-3-氯喹喔啉-2-胺在钯催化剂的存在下。该一锅法反应在室温下在不存在任何铜盐的情况下进行。反应产物取决于所用碱的性质。使用吗啉作为碱,得到最终的环化产物,而三乙胺仅得到偶联产物。 图形概要