Abstract
5-Bromo- and 5-methoxy-3-ethylanthranils, respectively, were obtained by cyclization of o-nitrosopropiophenone under the influence of hydrogen bromide in benzene and hydrogen chloride in methanol. In these reactions, the starting nitroso ketone undergoes redox transformations that also proceed readily in an inert solvent in the absence of any cyclizing reagents.
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K. H. Wünch and A. J. Boulton, Advances in Heterocyclic Chemistry, Vol. 8 (1967), p. 303.
Yu. S. Shabarov, S. S. Mochalov, A. N. Fedotov, and V. V. Kalashnikov, Khim. Geterotsikl. Soedin., No. 9, 1195 (1975).
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Yu. S. Shabarov and S. S. Mochalov, Zh. Org. Khim., 8, 293 (1972).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 886–890, July. 1976.
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Mochalov, S.S., Surikova, T.P. & Shabarov, Y.S. Cyclization of o-nitrosoacylbenzenes to anthranils. Chem Heterocycl Compd 12, 738–741 (1976). https://doi.org/10.1007/BF00477000
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DOI: https://doi.org/10.1007/BF00477000