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ChemInform Abstract: Highly Efficient Intramolecular Cyclizations of 2′-Hydroxychalcones to 4-Chloro-2H-chromenes under Vilsmeier Conditions.

✍ Scribed by Zhen-Hua Li; Cun Zheng; Wei-Ke Su

Publisher: John Wiley and Sons
Year: 2008
Weight: 23 KB
Volume: 39
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200847145

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Highly efficient intramolecular cyclizat

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✍ Zhen-Hua Li; Cun Zheng; Wei-Ke Su 📂 Article 📅 2008 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 321 KB

## Abstract magnified image Highly efficient intramolecular cyclization and of 2′‐hydroxychalcones to 4‐chloro‐2__H__‐chromenes under Vilsmeier conditions have been developed. In comparison with the reported methods, studies carried out indicate that Vilsmeier reagent generated __in situ__ from DM

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