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dc.contributor.authorSingh, K.S.
dc.contributor.authorGoankar, R.R.
dc.contributor.authorBanerjee, Kushal
dc.contributor.authorKaminsky, W.
dc.date.accessioned2023-09-23
dc.date.accessioned2023-09-08T12:20:40Z
dc.date.available2023-07-27
dc.date.available2023-09-08T12:20:40Z
dc.date.issued2023
dc.identifier.citationMonatshefte fur Chemie - Chemical Monthly, vol.154(8); 2023; 905-914
dc.identifier.issn0026-9247
dc.identifier.otherhttps://link.springer.com/article/10.1007/s00706-023-03104-0
dc.identifier.urihttps://doi.org/10.1007/S00706-023-03104-0
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9105
dc.description1.8
dc.description.abstractA series of pyrazolo[5,1-a]isoquinolines have been synthesized by ruthenium(II)-catalyzed annulation of pyrazole derivatives with alkynes in the presence of Cu(OAc)2‧H2O and AgSbF6 producing pyrazolo[5,1-a]isoquinolines. The reaction proceeded efficiently in water under nitrogen atmosphere leading to an excellent yield of the products. This annulation process can also be performed in alcohol at a lower temperature without Cu(OAc)2‧H2O and silver salt but in the presence of a carboxylate ligand under air. The compounds were characterized based on spectroscopic data and the crystal structure of one of the representative compound, pyrazolo[5,1-a]isoquinoline derivative has been determined by single-crystal X-ray crystallography.
dc.languageen
dc.publisherSpringer
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleSynthesis of pyrazolo[5,1-a]isoquinolines via C-H/N-H annulation of pyrazoles and alkynes with ruthenium(II) catalysts
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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