聚乙二醇(PEG-400):一种高效的绿色反应介质,可在以下条件下合成苯并[4,5]咪唑并[1,2- a ]-嘧啶[4,5 - d ]嘧啶-4(1 H)-ones。无催化剂的条件
摘要:
已经开发了一种简单有效的环保方法,可出色地合成苯并[4,5]咪唑并[1,2- a ]-嘧啶[4,5- d ]嘧啶-4(1 H)-ones。使用廉价且无毒的聚乙二醇(PEG-400)介质,在无催化剂的条件下获得高收率。此新协议具有重要的功能,它具有环境可接受性,较短的反应时间,室温,低成本,高收率和PEG-400培养基的可回收性。与现有方法相比,该方法提供了绿色且经过改进的协议。
A catalyst-free reaction in water: synthesis of benzo[4,5]imidazo[1,2-a]pyrimido[4,5-d]pyrimidin-4(1H)-one derivatives
作者:Junhua Liu、Min Lei、Lihong Hu
DOI:10.1039/c2gc35745c
日期:——
An environmentally benign and efficient method has been developed for the synthesis of a series of benzo[4,5]imidazo[1,2-a]pyrimido[4,5-d]pyrimidin-4(1H)-one derivatives in aqueous media under catalyst-free conditions by simply combining 2-aminobenzimidazole, aldehyde, and cyanoacetamide. The advantages of this method are that it is catalyst-free, has an easy workup, provides excellent yields, and
开发了一种环境友好的高效方法,用于在水溶液中合成一系列苯并[4,5]咪唑并[1,2- a ]嘧啶基[4,5- d ]嘧啶-4(1 H)-one衍生物媒体下催化剂简单组合即可获得无条件的条件 2-氨基苯并咪唑, 醛, 和 氰乙酰胺。这种方法的优点是催化剂-免费,后处理简单,产量高,使用方便 水 作为 溶剂 被认为是相对环境友好的。
Polyethylene glycol (PEG-400): an efficient green reaction medium for the synthesis of benzo[4,5]imidazo[1,2-a]-pyrimido[4,5-d]pyrimidin-4(1H)-ones under catalyst-free conditions
作者:Mudumala Veeranarayana Reddy、Jong Su Kim、Kwon Taek Lim、Yeon Tae Jeong
DOI:10.1016/j.tetlet.2014.09.135
日期:2014.11
A simple and an efficient eco-friendly methodology has been developed for the synthesis of benzo[4,5]imidazo[1,2-a]-pyrimido[4,5-d]pyrimidin-4(1H)-ones in excellent yields under catalyst-free-conditions using inexpensive and non-toxic polyethylene glycol (PEG-400) medium. This new protocol offers an environmental acceptability, shorter reaction time, room temperature, low cost, high yields, and recyclability
已经开发了一种简单有效的环保方法,可出色地合成苯并[4,5]咪唑并[1,2- a ]-嘧啶[4,5- d ]嘧啶-4(1 H)-ones。使用廉价且无毒的聚乙二醇(PEG-400)介质,在无催化剂的条件下获得高收率。此新协议具有重要的功能,它具有环境可接受性,较短的反应时间,室温,低成本,高收率和PEG-400培养基的可回收性。与现有方法相比,该方法提供了绿色且经过改进的协议。