Conclusions
The reaction of thiourea, N-phenyl-, and N,N'-diphenylthiourea with phenyl radicals proceeds by two competing pathways with the formation of the corresponding S-phenylisothiouronium compounds and bis(formamidine) sulfides. The ratio of the product yields depends on the nature of the thiourea, radical precursors, and reaction conditions.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 881–885, April, 1983.
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Freidlina, R.K., Kopylova, B.V., Kandror, I.I. et al. New method for the stabilization of intermediate radicals in the reaction of thiourea and its N-substituted derivatives with phenyl radicals. Russ Chem Bull 32, 801–805 (1983). https://doi.org/10.1007/BF00953481
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DOI: https://doi.org/10.1007/BF00953481