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|Title:||Synthesis of some new 1-(6-fluorobenzothiazol-2-yl)- 3-(4-fluoro- phenyl)-5-arylpyrazolines and their iodine(III) mediated oxidation to corresponding pyra-zoles|
Singh, Shiv P
|Abstract:||The reaction of fluorinated chalcones 2 and 6-fluorobenzothiazol-2-ylhydrazine 1 in presence of catalytic amount of glacial acetic acid in refluxing ethanol yields 1-(6-fluorobenzothiazol-2-yl)-3- (4-fluorophenyl)-5-arylpyrazolines 3, which undergo facile oxidation to the corresponding pyrazoles 4 in good yield using iodobenzene diacetate (IBD). The structures of the synthesized compounds have been established on the basis of their elemental analysis, MS and ¹H and ¹³C NMR spectroscopy.|
|Appears in Collections:||IJC-B Vol.46B(08) [August 2007]|
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|IJCB 46B(8) (2007) 1332-1336.pdf||201.17 kB||Adobe PDF||View/Open|
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