Synthesis and reactions of 3-carboxytropolone. Conversion to heterocycle-fused troponoid compounds
✍ Scribed by Luo-Cheng Zhang; Kimiaki Imafuku
- Book ID
- 112129993
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1991
- Tongue
- English
- Weight
- 299 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0022-152X
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## 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
## Abstract magnified image The starting substrate 3‐(3‐(2‐naphthyl)acryloyl)tropolone (**1**) was achieved by the aldol condensation reaction of 3‐acetyltropolone with 2‐naphthaldehyde. Compound (**1**) reacted with bromine to give 7‐bromo‐(**2**) and 5,7‐dibromo‐3‐(3‐(2‐naphthyl)acryloyl)tropolon
## Abstract A facile synthesis of a series of novel bromo‐, arylazo‐, and heterocyclic fused troponoid compounds containing 1,3‐benzodioxole system is described. The 7‐bromo‐, 5,7‐dibromo‐, and 5‐arylazo‐substituted 3‐[(2__E__)‐3‐(1,3‐benzodioxol‐5‐yl)prop‐2‐enoyl]tropolones (**2**, **3**, and **5*