SYNTHESIS OF SOME NEW HETEROCYCLIC COMPOUNDS FROM BENZOPYRANO[2,3-c]PYRAZOL-3-ONE DERIVATIVES
作者:A. Khodairy
DOI:10.1081/scc-100105398
日期:2001.1.1
The reaction of benzopyrano[2,3-c]pyrazol-3-one (1) with some active halo compounds, afforded compounds 4, 8 and 12, respectively. The cyanoethyl derivative 19 was synthesized and treated with active methylenes and sulfur or benzoylisothiocyanate and phenacyl bromide, to give compounds 24a,b and 27. Compounds 25a,b and 28 were obtained through the reaction of compounds 24a,b with acrylonitrile or compound
苯并吡喃并[2,3-c]吡唑-3-酮(1)与一些活性卤素化合物反应,分别得到化合物4、8和12。合成氰乙基衍生物19,并用活性亚甲基和硫或苯甲酰异硫氰酸酯和苯甲酰溴处理,得到化合物24a、b和27。化合物25a、b和28由化合物24a、b与丙烯腈或化合物27与丙烯腈反应得到。马来酸酐。化合物1的硫代得到相应的硫代衍生物29。4-亚苄基-2-甲基恶唑啉-5-one与化合物1或29的反应分别得到产物30a、b。