Introduction of the Difluoro(methoxy)methyl Group into the Aromatic Ring and the Study of Its Electronic Properties

Authors

  • Мykhailo O. Pashko Institute of Organic Chemistry of the National Academy of Sciences of Ukraine; Enamine Ltd, Ukraine
  • Yurii L. Yagupolskii Institute of Organic Chemistry of the National Academy of Sciences of Ukraine; Enamine Ltd., Ukraine https://orcid.org/0000-0002-5179-4096

DOI:

https://doi.org/10.24959/ophcj.24.321167

Keywords:

difluoro(methoxy)methyl, fluorodesulfurization, Hammett constants

Abstract

A simple and efficient method for synthesizing aromatic compounds with a difluoro(methoxy)methyl fragment (CF2OCH3) by the fluorodesulfurization of thionoesters has been developed. Systematic screening identified SnCl4/DAST as the optimal reagent combination, providing excellent selectivity and high yields of target products. A series of aromatic difluoro(methoxy)methyl compounds was synthesized under these conditions. Further studies of the electronic properties of the difluoro(methoxy)methyl group using 19F NMR allowed us to determine its Hammett constants for inductive (σI) and resonance (σR) effects. The results show that CF2OCH3 acts as a moderately electron-withdrawing substituent, underscoring its potential as a versatile group for designing organic molecules with precisely tuned electronic characteristics.

Supporting Agency

  • The author received no specific funding for this work.

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Published

2024-12-03

How to Cite

(1)
Pashko М. O.; Yagupolskii, Y. L. Introduction of the Difluoro(methoxy)methyl Group into the Aromatic Ring and the Study of Its Electronic Properties. J. Org. Pharm. Chem. 2024, 22, 10-16.

Issue

Vol. 22 No. 4 (2024): Issue in Progress

Section

Original Researches

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