## Abstract magnified image Condensation of 4‐chloro‐2‐oxo‐2__H__‐chromene‐3‐carbonitrile (**1**) with heteroarylamines **2a‐d** in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives **3a‐d**, respectiv
Conversion of 3-carbethoxy-4-methyl coumarin derivatives into several new annelated coumarin derivatives
✍ Scribed by Hadeer Bakeer Mohammed
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 359 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0256-7660
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