Efficient synthesis of chromenopyridine and chromene via MCRs

Hai Feng Gan, Wei Wei Cao, Zheng Fang, Xin Li, Shi Gui Tang, Kai Guo

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

MCRs for preparation of chromenopyridines under reflux conditions and chromenes at room temperature conditions from different salicylaldehydes, malononitrile and different thiols (mol ratio = 1:2:1) were established. Mechanistic investigation suggests that the MCRs undergo different pathways at different temperatures and catalyzed by different organic bases. The structure of chromenopyridine and chromene are confirmed by crystal X-ray crystallography.

Original languageEnglish
Pages (from-to)1357-1362
Number of pages6
JournalChinese Chemical Letters
Volume25
Issue number10
DOIs
StatePublished - Oct 2014

Keywords

  • Chromene
  • Chromenopyridine
  • Mechanistic study
  • Multi-component reaction
  • Reaction condition

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