Summary.
A synthesis of 1,2-diphenylpyrazolidin-4-ol via direct heterocyclization of 1,2-diphenylhydrazine with 1-chloro-2,3-epoxypropane, its O-epoxypropyl-, O-ethyl-, and O-benzylderivatives are described. Novel hydrazone derivatives with pyrazolidine units were also synthesized. The compounds were characterized by spectroscopic methods as well as elemental analyses.
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Getautis, V., Sinkeviciute, G. & Stanisauskaite, A. Synthesis of 1,2-Diphenylpyrazolidin-4-ol and its Derivatives. Monatsh. Chem. 138, 477–480 (2007). https://doi.org/10.1007/s00706-007-0602-9
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DOI: https://doi.org/10.1007/s00706-007-0602-9