Reactions with 4-Bromo-3-methyl-1-phenyl-2-pyrazolin-5-one: New Fused Pyrazole Derivatives
作者:Abdou O. Abdelhamid、Bahia Y. Riad
DOI:10.1002/ardp.198700003
日期:1987.10
New furo[2,3‐c]pyrazoles and pyrano[2,3‐c]pyrazoles were synthesized from 4‐bromo‐3‐methyl‐1‐phenyl‐2‐pyrazolin‐5‐one and active methylenenitriles, ethyl acetoacetate or phenylhydrazine. The constitutions of the new heterocycles were established by elemental analyses and spectroscopic data.
新型呋喃[2,3-c]吡唑和吡并[2,3-c]吡唑由4-溴-3-甲基-1-苯基-2-吡唑啉-5-酮和活性亚甲基腈、乙酰乙酸乙酯或苯肼合成. 通过元素分析和光谱数据确定了新杂环的组成。