Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 58, Issue 2, Pages 270-272Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.58.270
Keywords
tetracyanoethylene; CH-acid; pyran; pyridine-functionalized MCM-41
Funding
- Research Council of Shahid Beheshti University
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Pyridine-functionalized MCM-41 catalyzed reactions between tetracyanoethylene and various activated CH-acid compounds are described. These reactions afford the corresponding pyran annulated heterocyclic ring systems in high yields at room temperature within a few minutes. The work-up procedure is very simple and the products do not require further purification. The catalyst can be recycled and reused for several times without observable loss of performance.
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