The Reaction of Ethyl 2-oxo-2H-chromene-3-carboxylate with Hydrazine Hydrate
✍ Scribed by Abdel-Aziz, Hatem; Elsaman, Tilal; Attia, Mohamed; Alanazi, Amer
- Book ID
- 120466381
- Publisher
- Molecular Diversity Preservation International
- Year
- 2013
- Tongue
- English
- Weight
- 223 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1420-3049
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## Abstract The key 3-(2-oxo-2H-chromen-3-yl)-2-oxo-2H,5H-pyrano[3,2-c]chromen-5-yl acetates 3 were synthesized in high yields by cyclocondensation of 4-oxo-4H-chromen-3-carbaldehydes 1 with coumarin-3-acetic acids 2 under mild conditions. The reaction pathway involves aldol condensation and subseq
Single-crystal X-ray study T = 296 K Mean '(C±C) = 0.003 A Ê Disorder in main residue R factor = 0.040 wR factor = 0.101 Data-to-parameter ratio = 12.8 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.