REVISED SYNTHESIS OF SOME NEW DERIVATIVES OF BIOLOGICAL INTEREST 2-HETEROCYCLIC BENZOTHIAZOLYL DERIVATIVES OF BIOLOGICAL INTEREST
作者:A. A. Fadda、F. A. Amer、M. E. A. Zaki、K. H. Samir
DOI:10.1080/10426509908044970
日期:1999.12
Abstract Substituted benzothiazole at position 2 by a heterocyclic ring has been prepared by the action of bifunctional compounds on the active intermediate a-2-benzoth: azolyl-β-arylaminoacrylonitrile (III). Compound III was obtained by refluxing a-2-benzothiazolyl-β, β-dimethylthioacrylonitrile (II) with aromatic amines in ethanol for a long time. Refluxing equimolar amounts of I11 and hydrazine
摘要 通过双官能化合物对活性中间体 α-2-苯并噻唑:唑基-β-芳基氨基丙烯腈 (III) 的作用,制备了 2 位被杂环取代的苯并噻唑。将α-2-苯并噻唑基-β,β-二甲基硫代丙烯腈(II)与芳香胺在乙醇中长时间回流得到化合物III。在 DMF 存在下回流等摩尔量的 I11 和肼、羟胺、胍乙二胺和乙醇胺,分别产生相应的 2-pyra-2010、异恶唑、嘧啶、1,4-二氮杂和 1,4-恶氮杂苯并噻唑 (V-IX)。所有新制备的化合物的结构都已通过分析和光谱数据得到证实。