Synthesis and Cycloaddition Reactions of N-Aryl-2-furohydrazonyl Chlorides

  • S, Shawali-Ahmad (Department of Chemistry, Faculty of Science, King Abdulaziz University) ;
  • M, Hassaneen-Hamdi (Department of Chemistry, Faculty of Science, University of Cairo) ;
  • A, Ibrahim-Hossin (Department of Chemistry, Faculty of Science, University of Cairo)
  • Published : 1990.06.01

Abstract

The novel N-phenyl-2-furohydrazonyl chloride 4A and its p-nitro analog 4B have been prepared and identified. The cycloaddition reactions of nitrilimines 5A and 5B, derived by base catalyzed dehydrochlorination of 4A and 4B respectively, to a variety of dipolarophiles were investigated. The results showed that 4A and 4B are usuful precursors for synthesis of differently substituted 3-(2-furyl)-2-pyrazoline derivatives and their pyrazoles and analogs.

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