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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 12
BKCSDE 32(12)
December 20, 2011 

Aromatization of 1,3,5-Trisubstituted of 4,5-Dihydro-1H-Pyrazoles by In-Situ Generation of I+ from Hydrogen Peroxide/Acids/Iodide Potassium or Sodium Systems
Behrooz Maleki *, Hojat Veisi
1,3,5-Trisubstituted-2-pyrazolines, Pyrazole, Acids, Hydrogen peroxide, Iodide sodium or potassium
A simple, green and cost-effective protocol was used for the aromatization of 1,3,5-trisubstituted-2-pyrazolines to the corresponding pyrazoles by in situ generation of iodine (I+) from H2O2/AcOH or SSA or oxalic acid /KI or NaI system under thermal condition with moderate to good yields.
4366 - 4370
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