Resumen

HUANG, XIANQIANG; DOU, JIANMIN; LI, DACHENG  y  WANG, DAQI. A NEW METHOD TO SYNTHESIZE 3,5-DIARYLPYRAZOL DERIVATIVES. J. Chil. Chem. Soc. [online]. 2009, vol.54, n.1, pp. 20-22. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072009000100005.

Twelve 3, 5-diarylpyrazoles have been synthesized by microwave-assisted condensation reaction in a short and concise manner using various aromatic aldehydes and aromatic ketones as starting materials. The corresponding products were obtained in good yields (87-96%). All products were identified by MS, ¹H NMR, ¹³C NMR and elemental analysis. The advantages of this novel protocol include the excellent yield, operational simplicity, short time and the avoidance of the use of expensive catalysts.

Palabras llave : 2,4, 6-Triarylpyrylium salts; 3,5-Diarylpyrazoles; Microwave irradiation.