Polyvinylpyrrolidone-bromine complex: An efficient polymeric reagent for selective preparation of benzyl bromides in the presence of hexamethyldisilane

  • Masoud Mokhtary
  • Moslem M. Lakouraj

Abstract

Benzylic bromides were conveniently obtained in high yields via the reaction of the corresponding alcohols with crosslinked polyvinylpyrrolidone-bromine complex (PVPP-Br2)/hexamethyldisilane in chloroform at reflux condition. Selective conversion of benzyl alcohol to benzyl bromide in the presence of primary aliphatic alcohols, e.g. 2-phenylethanol was also achieved.

 

KEY WORDS: Polyvinylpyrrolidone-bromine, Benzyl bromide, Hexamethyldisilane, Selective bromination

 

Bull. Chem. Soc. Ethiop. 2012, 26(2), 305-309.

DOI: http://dx.doi.org/10.4314/bcse.v26i2.14

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Articles

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eISSN: 1726-801X
print ISSN: 1011-3924