An efficient and facile synthesis of 3-amino-5-chromenyl-butenolides from 3-formyl chromone, dialkyl acetylenedicarboxylate, and primary amines

Mol Divers. 2013 Feb;17(1):55-61. doi: 10.1007/s11030-013-9423-4. Epub 2013 Jan 23.

Abstract

A three-component reaction of 3-formyl chromones, dialkyl acetylenedicarboxylate, and isocyanides in the presence of POCl(3) was used as a highly efficient and practical approach for the synthesis of 3-amino-5-chromenyl-butenolides. High yields and high bond forming efficiency, and simple operations are the advantages of this method. Graphical abstract.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 4-Butyrolactone / analogs & derivatives*
  • 4-Butyrolactone / chemical synthesis
  • Alkynes / chemistry*
  • Amines / chemistry*
  • Chromones / chemistry*
  • Cyanides / chemistry
  • Fatty Acids, Unsaturated / chemistry*

Substances

  • Alkynes
  • Amines
  • Chromones
  • Cyanides
  • Fatty Acids, Unsaturated
  • 2-butynedioic acid
  • butenolide
  • 4-Butyrolactone