Study of regioselectivity of reactions between 3(5)-aminopyrazoles and 2-acetylcycloalkanones
摘要:
Regioselectivity was examined of reactions between nine 3(5)-aminopyrazoles and 2-acetylcyclopentanone and 2-acetylcyclohexanone under various conditions. A series of cyclopenta[e]pyrazolo-[1,5-a]pyrimidines was obtained. The highest regioselectivity of the reaction was observed in alcohol at 20A degrees C in the presence of a catalytic quantity of trifl uoroacetic acid. The regiostructure of compounds was established by H-1 and C-13 NMR spectroscopy.
Study of regioselectivity of reactions between 3(5)-aminopyrazoles and 2-acetylcycloalkanones
作者:A. A. Petrov、A. N. Kasatochkin、E. E. Emelina
DOI:10.1134/s1070428012080131
日期:2012.8
Regioselectivity was examined of reactions between nine 3(5)-aminopyrazoles and 2-acetylcyclopentanone and 2-acetylcyclohexanone under various conditions. A series of cyclopenta[e]pyrazolo-[1,5-a]pyrimidines was obtained. The highest regioselectivity of the reaction was observed in alcohol at 20A degrees C in the presence of a catalytic quantity of trifl uoroacetic acid. The regiostructure of compounds was established by H-1 and C-13 NMR spectroscopy.