J Org Chem. 2005 Sep 16;70(19):7537-41.

Electrolytic partial fluorination of organic compounds. 79. Anodic fluorination of spiropyrazoline-5,3'-chroman-4-ones and thiochromanone analogues. A route to aroyl fluoride derivatives.

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Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt.

Abstract

[reaction: see text] Anodic fluorination of spiropyrazole-5,3'-chroman-4-ones and their thiochromanone analogues in dimethoxyethane containing Et4NF x 4HF resulted in ring opening of spiroheterocycles, which led to the formation of (5-pyrazolyl)methyl o-carbomethoxyphenyl ethers and their thioether analogues via benzoyl fluoride derivatives.

PMID:: 16149781; [PubMed - indexed for MEDLINE]

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Cited by 2 PubMed Central articles

One Pot Spiropyrazoline Synthesis via Intramolecular Cyclization/Methylation. [Tetrahedron Lett. 2011]
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