Abstract
The effect has been studied of the nature of the substituent (methyl, chloro, nitro group) on the Fischer cyclization of 5-substituted pyrid-2-yl-hydrazones of cyclohexanone under the action of different catalysts: Lewis acids and strong mineral and arylsulfonic acids.
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References
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Yakhontov, L.N., Pronina, E.V. & Rubtsov, M.V. Fischer cyclization of 5-substituted pyrid-2-yl-hydrazones of cyclohexanone. Chem Heterocycl Compd 6, 170–174 (1970). https://doi.org/10.1007/BF00474990
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DOI: https://doi.org/10.1007/BF00474990