Acceleration of halogen-exchange reaction of lead(II) fluoride in organic solvent

Junko Ichihara, Masao Takahashi, Shuichi Emura, Tatsunori Tochio, Yoshiaki Ito, T. Mukoyama

Research output: Contribution to journalArticle

Abstract

A combination of lead (II) fluoride and a small amount of sodium bromide accelerates the halogen-exchange reaction of benzyl bromide to benzyl fluoride in acetonitrile. By analyzing Br K-EXAFS for both the combined reagent and aliquots taken from the reaction mixture, bromide-participating species has been found in both the combined reagent and the initial stage of the reaction. Such species disappeared with proceeding of the reaction and a new lead compound, Pb3.0 Br1.1F5.9 (1) was formed. The evidence suggests that the bromide-participating species initially formed in the combined process between lead fluoride and sodium bromide act the high reactivity for the organic fluorination.

Original languageEnglish
Pages (from-to)602-603
Number of pages2
JournalJournal of Synchrotron Radiation
Volume6
Issue number3
Publication statusPublished - May 1 1999

Fingerprint

halogens
Organic solvents
fluorides
bromides
Lead
Sodium
sodium bromides
Lead compounds
Fluorination
Acetonitrile
reagents
lead compounds
fluorination
acetonitrile
reactivity

Keywords

  • Br K-EXAFS
  • Combined solid reagent
  • Lead fluoride
  • Organic fluorination

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Radiation

Cite this

Ichihara, J., Takahashi, M., Emura, S., Tochio, T., Ito, Y., & Mukoyama, T. (1999). Acceleration of halogen-exchange reaction of lead(II) fluoride in organic solvent. Journal of Synchrotron Radiation, 6(3), 602-603.

Acceleration of halogen-exchange reaction of lead(II) fluoride in organic solvent. / Ichihara, Junko; Takahashi, Masao; Emura, Shuichi; Tochio, Tatsunori; Ito, Yoshiaki; Mukoyama, T.

In: Journal of Synchrotron Radiation, Vol. 6, No. 3, 01.05.1999, p. 602-603.

Research output: Contribution to journalArticle

Ichihara, J, Takahashi, M, Emura, S, Tochio, T, Ito, Y & Mukoyama, T 1999, 'Acceleration of halogen-exchange reaction of lead(II) fluoride in organic solvent', Journal of Synchrotron Radiation, vol. 6, no. 3, pp. 602-603.
Ichihara, Junko ; Takahashi, Masao ; Emura, Shuichi ; Tochio, Tatsunori ; Ito, Yoshiaki ; Mukoyama, T. / Acceleration of halogen-exchange reaction of lead(II) fluoride in organic solvent. In: Journal of Synchrotron Radiation. 1999 ; Vol. 6, No. 3. pp. 602-603.
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