Concepedia

A convenient synthesis of 1,4‐dihydro‐4‐oxopyridazino[3,4‐b]quinoxalines by a ring transformation of 1,2‐diazepino[3,4‐<i>b</i>]quinoxalines

Yoshihisa Kurasawa, Ho Sik Kim, Tae Kawano, Ritsuko Katoh, Atsushi Takada, Yoshihisa Okamoto

Journal of Heterocyclic Chemistry · 1991 · 13 citations · 7 references

DOI

Concepts

Abstract

Abstract The reaction of the 1,2‐diazepino[3,4‐ b ]quinoxalines 2a,b or 3a,b with N ‐bromosuccinimide/water resulted in ring transformation to give the 1,4‐dihydro‐4‐oxopyridazino[3,4‐ b ]quinoxalines 4a,b , respectively.

References

7

β-Acylethylation with Ketonic Mannich Bases. The Synthesis of Some Diketones, Ketonic Sulfides, Nitroketones and Pyridines

Naida S. Gill, Kenneth B. James, Francis Lions et al. · Journal of the American Chemical Society · 1952 · 72 citations

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Heterocyclic Studies. III. A Ring Closure Reaction of Diazoacetylpyrazolines

James A. Moore, Robert W. Medeiros · Journal of the American Chemical Society · 1959 · 26 citations

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Heterocyclic Studies. IV. Evidence for the Structure of 2,3-Dihydro-5-methyl-6-phenyl-4H-1,2-diazepin-4-one<sup>1</sup>

James A. Moore, J. Binkert · Journal of the American Chemical Society · 1959 · 20 citations

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2-Amino-3(2H)isoquinolone, 2,3-Benzodiazepin-4(5H)one, and Related Compounds

J. O. Halford, Ralph Walton Raiford, Bernard Weissmann · The Journal of Organic Chemistry · 1961 · 19 citations

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A facile synthesis of novel 1,2‐diazepino[3,4‐<i>b</i>]quinoxalines by a 1,3‐dipolar cycloaddition reaction

Ho Sik Kim, Yoshihisa Kurasawa, Chiemi Yoshii et al. · Journal of Heterocyclic Chemistry · 1990 · 18 citations

, , +14