A simple, efficient, and environmentally benign procedure for the synthesis of 2-amino-4Hchromene
ring has been achieved by the three-component reaction of an aromatic aldehyde,
malononitrile and diverse enolizable C-H activated compound under ultrasound irradiation using
sodium carbonate as a catalyst in aqueous media. Sodium carbonate as a natural salt, being available as
an inexpensive catalyst combined with ultrasound method promoted this protocol in comparison to
other methods and catalysts.
一种简单、高效且环境友好的 2-
氨基-4H色烯合成方法
环是通过芳香醛的三组分反应获得的,
丙二腈和多种烯醇化C-H活化化合物在超声波照射下使用
碳酸钠在
水介质中作为催化剂。
碳酸钠作为天然盐,可以作为
与超声波方法相结合的廉价催化剂促进了该方案
其他方法和催化剂。