CO-CATELYSES IN FRIEDEL-CRAFTS REACTIONS. PART VII. THE FORMATION OF ULTRAVIOLET CHROMOPHORES,

Abstract

Solutions of butene in ethylene dichloride with boron trifluoride and hydroxylic co-catalysts slowly develop an absorption band with a peak at 304 = 2 m micron, in addition to isomerising and polymerising. The kinetics of peak growth show that the band is not due to an intermediate in the isomerisation or polymerisation reactions, but may be due to alkylated alkenyl cations, formed by hydride abstraction from butene or unsaturated polybutene by aliphatic carbonium ions. The ultraviolet spectra obtained from conjugated dienes in acid solutions closely resemble those obtained from butene in the solutions described above. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 10, 1964
Accession Number
AD0614509

Entities

People

  • J. M. Roberts

Organizations

  • National Research Council Canada

Tags

DTIC Thesaurus Topics

  • Absorption
  • Alkenes
  • Catalysts
  • Chemical Reactions
  • Chromophores
  • Diffraction
  • Electromagnetic Spectra
  • Ethylenes
  • Friedel Crafts Reactions
  • Isomerization
  • Kinetics
  • Polymerization
  • Spectra
  • Ultraviolet Spectra
  • Wave Phenomena

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Spectroscopy.