USGS Science⌕ Search
Home/Archive/USGS

USGS · 70010563

Aromatic fluorine compounds. VII. Replacement of aromatic -Cl and -NO2 groups by -F

G. C. Finger·C.W. Kruse
View original source ↗Export metadata ↓

Abstract

Replacement of -Cl by -F in aryl chlorides with potassium fluoride has been extended from 2,4-dinitrochlorobenzene to less activated halides by the use of non-aqueous solvents, especially dimethylformamide (DMF) and dimethyl sulfoxide (DMSO). Also replacement of -NO2 by -F in substituted nitrobenzenes was studied in DMF. As a direct result of this study, many aromatic fluorine compounds can now be obtained by a relatively simple synthetic route.

Explore related subjects

Journal of the American Chemical SocietyArticle

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

G. C. Finger, C.W. Kruse. 2002-05-01. Aromatic fluorine compounds. VII. Replacement of aromatic -Cl and -NO2 groups by -F. https://doi.org/10.1021/ja01604a022

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related USGS reports

USGS2002

Spectroscopy and decay dynamics of several methyl-and fluorine-substituted benzene radical cations

Spectra of several fluorobenzene cation radicals containing 1-3 methyl substituents were observed in solid Ne matrix and analyzed. Comparisons between these compounds and other fluorobenzenes studied previously as well as comparisons between the Β ~ state lifetimes in the gas phase and in the matrix are used to gain a deeper insight into the Β ~ state decay dynamics.

Journal of the American Chemical Society↗
USGS2002

Molecular structure of the decamolybdodicobaltate(III) ion

When solutions of cobalt(II) ion and heptamolybdate ion (Mo₇O₂₄⁶⁻) are mixed in the presence of an oxidizing agent (such as bromine), Kurnakov, Hall, and others found that an emerald green complex is formed as the main product, namely, the heteropoly complex ion hexamolybdocobaltate(III), which forms salts such as (NH₄)₃[H₆CoMo₆O₂₄]·12H₂O. Friedheim and Keller showed that at the same time a small amount of another complex is also formed, having a Co:Mo ratio of 1:5. Tsigdinos, et al., found that if a hot solution of the hexamolybdocobaltate complex ion is treated with activated charcoal or Raney nickel the 1:6 complex is converted almost entirely to the 1:5 complex. These workers proved the latter to be a dimer, and formulated the ammonium salt (earlier prepared by Friedheim and Keller) as (NH₄)₆[Co₂Mo₁₀O₃₆]·10H₂O. We have now completed a crystal structure analysis of this interesting compound, which shows the proper formula to be (NH₄)₆[H₄Co₃Mo₁₀O₃₈]·7H₂O.

Journal of the American Chemical Society↗