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An Efficient Synthesis of 3-Hydroxychromone Using Niobium Pentachloride.

✍ Scribed by Mauricio Gomes Constantino; Valdemar Jr. Lacerda; Gil Valdo Jose da Silva


Publisher
John Wiley and Sons
Year
2003
Weight
76 KB
Volume
34
Category
Article
ISSN
0931-7597

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An efficient synthesis of 3-hydroxychrom
✍ Mauricio Gomes Constantino; Valdemar Lacerda Júnior; Gil Valdo José Da Silva 📂 Article 📅 2003 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 35 KB

## Abstract A new and efficient 2‐step synthesis of 3‐hydroxychromone is described. Commercially available chromone is converted to the corresponding epoxide which is rearranged with niobium pentachloride to 3‐hydroxychromone in 61% overall yield.