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A convenient one-pot synthesis of new chromeno[3,4-c]chromene and chromeno[3,4-c]pyridine derivatives in the presence of high surface area of magnesium oxide

✍ Scribed by Mohammadzadeh, Iman; Sheibani, Hassan


Book ID
118427991
Publisher
Chinese Electronic Periodical Services
Year
2012
Tongue
English
Weight
230 KB
Volume
23
Category
Article
ISSN
1001-8417

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The condensation of active methylene rea
✍ Tarek M. Abu Elmaati; Fathi M. El-Taweel; Shymaa M. Elmougi; Abdelghani Elagamey πŸ“‚ Article πŸ“… 2004 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 120 KB

## Abstract On heating of the cyanoacetic acid cyclopentylidene hydrazide **1** with salicylaldehyde in the presence of bases the azaanthracene derivative **6** was formed. Also, reaction of **3** with malononitrile and ketones **10a,b** afforded the pyrano[3,4‐__c__]chromene **9** and chromeno[3,4