Friedländer reaction of 3-acetyltropolones: Synthesis of naphthyridinyl- and allied heterocyclic-substituted tropolones
✍ Scribed by Ming-Zhu Piao; Kimiaki Imafuku
- Book ID
- 112131483
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1996
- Tongue
- English
- Weight
- 759 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0022-152X
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## Abstract The preparation of a number of new 7‐heterocyclic‐substituted furochromones and related chalcones is reported. Oxidation of the chalcones, by alkaline hydrogen peroxide, leads to the formation of derivatives of aurone. Chemical, analytical and spectroscopic results are in accord with t
## Abstract The starting substrate 3‐(3‐(1‐naphthyl)acryloyl)tropolone (**3**) was achieved by the aldol condensation reaction of 3‐acetyltropolone with 1‐naphthaldehyde. Compound **3** reacted with bromine to afford 7‐bromo‐3‐ (3‐(1‐naphthyl)acryloyl)tropolone (**4**), 5,7‐dibromo‐3‐(3‐(1‐naphthyl