abstract |
4-(Aryloxyalkyl)pyrazoles of the formula ##STR1## useful as antiviral agents, are prepared by reacting the corresponding diketones of the formula Ar--O--Alk--CH(COR')COR" with hydrazine or a substituted hydrazine H 2 NNHR. Mono- or bis-pyrazoles are similarly obtained from bis-diketones of the formula ##STR2## |