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Multi-step super-fast reactions of amines with chloroanhydrides

Book ID
114046658
Publisher
Elsevier Science
Year
1966
Tongue
English
Weight
93 KB
Volume
5
Category
Article
ISSN
0021-9517

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Multi-step synthesis of benzopyranones v
Multi-step synthesis of benzopyranones via a key step involving reaction of the intermediate compound with phenyltrimethylammonium tribromide
✍ T. Javed; S. S. Kahlon 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 39 KB

## Abstract Base catalysed condensation of a substituted 2‐hydroxyacetophenone with acetic anhydride and sodium acetate followed by cyclization of the intermediate with acid gave substituted 3‐acetyl‐2‐methyl‐4__H__‐1‐benzopyran‐4‐ones. These were then brominated with phenyltrimethylammonium tribro