Iodine-mediated synthesis of 2-arylbenzoxazoles, 2-arylbenzimidazoles, and 1,3,5-trisubstituted pyrazoles
2-Arylbenzoxazoles and 2-arylbenzimidazoles were synthesized by the reaction of aldehydes with 2-aminophenol and O-phenylenediamines in the presence of iodine. 1,3,5-Trisubstituted pyrazoles were synthesized from chalcones and hydrazines in the presence o
Ponnala, Shashikanth,Prasad Sahu, Devi
p. 2189 - 2194
(2007/10/03)
Heterocycles. 3. Synthesis and Spectral Data of Some 2-Pyrazolines
The reaction of 1,3-diaryl-2-propen-1-ones (Ia-o) with hydrazine and methyl- and phenylhydrazine produced different substituted 2-pyrazolines (III).The structures of these products were evident from their chemical and spectroscopic analysis.
El-Rayyes, Nizar R.,Hovakeemian, George H.,Hmoud, Hayat S.
p. 225 - 229
(2007/10/02)
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