Summary
The Pfitzinger condensation of di-isatin with some ketones is reported.
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Menon, K.N., Raman, P.S. Heterocyclic compounds. Proc. Indian Acad. Sci. (Math. Sci.) 38, 132–134 (1953). https://doi.org/10.1007/BF03045213
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DOI: https://doi.org/10.1007/BF03045213