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Thermolysis of the adduct formed from N-phenylpyrrolidine and diethyl azodicarboxylate leads to a mixture of isomeric dimers whose structures and mechanisms of formation have been elucidated. The same dimers are formed by ozonation of N-phenylpyrrolidine. Other NN-dialkylanilines and their reactions with the azodicarboxylate as well as with ozone are described.
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Kerr et al. (1974) studied this question.
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