2-Dialkoxyphosphoryl-1, 4-dihydrobenzodiazines

FI Guseinov, KA Asadov, RN Burangulova…

Index: Guseinov; Asadov; Burangulova; Moskva Chemistry of Heterocyclic Compounds, 2001 , vol. 37, # 8 p. 1044 - 1045

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Abstract

The condensation of α-halocarbonyl compounds with o-phenylenediamine proceeds to give linear enamines [1], benzodiazines [2], and benzimidazole (cleavage of a carbon–carbon bond)[3]. Hence, it was of interest to study the reactions of chlorophosphorylacetaldehydes 1 with o-phenylenediamine. The reaction of chloro aldehydes 1a-1c with o-phenylenediamine proceeds through two pathways. 1) Chloro aldehydes 1a and 1b undergo ...