Please use this identifier to cite or link to this item:
|Title:||Synthesis of 5-(2-5'-aryl-3'-isoxazolyl)-3,6-dimethylisoxazolo[4,5-b]pyridines|
|Keywords:||deoxygenation;isoxazolo[4,5-b]pyri¬dine; ,-unsaturated system;cyclisation;isoxa¬zole ring formation|
|IPC Code:||Int.Cl.7 C 07 D|
|Abstract:||Isoxazolopyridine-N-oxides 2 are deoxygenated to pyridines 3 by treatment with PCl3. 5-Acetyl-3,6-dimethylisoxazolo[4,5-b]pyridine 3 is condensed with aromatic aldehydes to give , -unsaturated carbonyl moiety at position-5, which then cyclizes to isoxazole ring by reaction with hydroxylamine hydrochloride in sodium acetate-acetic acid to result in title compounds 7. All the new compounds 3-7 have been characterized by elemental analyses and spectral (IR, 1H NMR and mass) data.|
|Appears in Collections:||IJC-B Vol.44B(09) [September 2005]|
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.