2000 pyrazole derivatives

pyrazole derivativesR 0180

39 - 116Pyrazoles from 3-Formylchromone–Ethyl Vinyl Ether Adduct. —The synthesis of pyrazoles (III), (VI) and (VIII) from aldehyde (I) and ketone(V), products of acid cleavage of the title adduct in acetone, is described. —(SIDDIQUI, ZEBA N.; ZAMAN, ASIF; J. Indian Chem. Soc. 76 (1999) 7,368-369; Dep. Chem., Aligarh Muslim Univ., Aligarh 202 002, India; EN)

1