Synthesis of tetrasubstituted pyrazoles containing pyridinyl substituents

A synthesis of tetrasubstituted pyrazoles containing two, three or four pyridinyl substituents is described. Hence, the reaction of 1,3-dipyridinyl-1,3-propanediones with 2-hydrazinopyridine or phenylhydrazine, respectively, affords the corresponding 1,3,5-trisubstituted pyrazoles. Iodination at the...

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Bibliographic Details
Published in:Beilstein J Org Chem
Main Authors: Jansa, Josef, Schmidt, Ramona, Mamuye, Ashenafi Damtew, Castoldi, Laura, Roller, Alexander, Pace, Vittorio, Holzer, Wolfgang
Format: Artigo
Language:Inglês
Published: Beilstein-Institut 2017
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Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC5433223/
https://ncbi.nlm.nih.gov/pubmed/28546847
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.3762/bjoc.13.90
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