Benzimidazol‐Derivate und verwandte Heterocyclen. IV. Die Kondensation von o‐Phenylendiamin mit α‐Aryl‐ und γ‐Aryl‐acetessigester

1960/01/01 by A. Rossi, A. Hunger, J. Kebrle +1 · 2 citations
Chemistry · #Synthesis and biological activity #Synthesis of heterocyclic compounds #Synthesis and Characterization of Heterocyclic Compounds

paper · doi:10.1002/hlca.19600430413

openalex publication_date 1960/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/27

Abstract

Abstract The reaction of o‐phenylenediamine with α‐phenyl‐ and γ‐phenyl‐acetoacetic ester has been investigated. The former yields mainly 1‐β‐methylstyryl‐benzimidazole‐2‐one (IX), the latter affords 4,7‐dihydro‐5‐benzyl‐1 H ‐2,3‐benzo‐1,4‐diazepin‐7‐one (XVI). The structures of these products have been elucidated.

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