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 language | English |
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Pages (from-to) | 1357-1362 |
Number of pages | 6 |
Journal | Chinese Chemical Letters |
Volume | 25 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2014 |
Keywords
- Chromene
- Chromenopyridine
- Mechanistic study
- Multi-component reaction
- Reaction condition