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Methyl N -methyl- N -nitrosoanthranilate thermolysis in the vapor and condensed phases gave different coupling products, dimethyl 2,2′-(1,2-dimethylhydrazine-1,2-diyl)dibenzoate and methyl 5-methyl-6-oxo-(5 H )-phenanthridine-4-carboxylate, respectively.
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Miltojević et al. (2015) studied this question.
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