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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 9, Number 6
BKCSDE 9(6)
June 20, 1988

Title	O-Acylation of Heteropolyanions Containing Two Adjacent Vanadium Atoms
Author	Chul Wee Lee, Hyunsoo So*, Kyu Ryong Lee
Keywords
Abstract	Reaction of Keggin- or Dawson-type heteropolyanions containing two adjacent vanadium atoms with acetic anhydride in the presence of acid produced acylated anions. Heteropolyanions with one or no vanadium atom do not react under the same conditions, indicating that the acyl group is attached to the bridging oxygen atom between the two vanadium atoms. A characteristic infrared band at 1760 cm-1 was observed for the acylated anions. The 8-line EPR spectrum shows that one of the vanadium atoms is reduced to Ⅴ(Ⅳ ). The acylated heteropolyanions are easily hydrolyzed, and its acyl group can also be transferred to aniline.
Page	362 - 364
Full Text	PDF

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