Concepedia

Synthesis of functional 4H-chromenes from phenols and acetophenones under solvent- and metal-free conditions

Hui‐Jing Li, Kai Deng, Dong‐Hui Luo, Dehui Liu, Junli Wang, Chunhua Lin, Yan‐Chao Wu

RSC Advances · 2014 · 14 citations · 58 references

DOI

Concepts

Abstract

Sulfuric-acid-promoted tandem reaction of phenols with acetophenones under solvent- and metal-free conditions has been developed, which afforded functional 4<italic>H</italic>-chromenes in good yields with water as the side product.

References

58

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Potassium phthalimide-N-oxyl: a novel, efficient, and simple organocatalyst for the one-pot three-component synthesis of various 2-amino-4H-chromene derivatives in water

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