Abstract
It is shown that arylthiohydrazides of carboxylic acids undergo cyclization to give both bis (1-methyl-2-indolyl) disulfides and salts of the corresponding 1-methyl-2-aminoindole under the influence of phosphorus halides (POCl3 or PCl3).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 344–347, March, 1979.
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Kost, A.N., Golubeva, G.A. & Popova, A.G. Cyclization of arylthiohydrazides of carboxylic acids under the influence of phosphorus halides. Chem Heterocycl Compd 15, 282–285 (1979). https://doi.org/10.1007/BF00474092
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DOI: https://doi.org/10.1007/BF00474092