Repository logo
 
Publication

Pyrazole and trispyrazolylmethane rhenium complexes as catalysts for ethane and cyclohexane oxidations

2007-01-27Journal article Restricted access
Simple item page
dc.contributor.authorAlegria, Elisabete
dc.contributor.authorKirillova, Marina V.
dc.contributor.authorMartins, Luisa
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2020-07-21T14:10:18Z
dc.date.available2020-07-21T14:10:18Z
dc.date.issued2007-01-27
dc.description.abstractThe pyrazole complexes [ReCl2{N2C(O)Ph}(Hpz)(PPh3)2] 2 (Hpz = pyrazole), [ReCl2{N2C(O)Ph}(Hpz)2(PPh3)] 3 and [ReClF{N2C(O)Ph}(Hpz)2(PPh3)] 4, and the tris(pyrazolyl)methane compounds [ReCl2(HCpz3)(PPh3)][BF4] 5 (pz = pyrazolyl), [ReCl3{HC(pz)3}] 7, [ReOCl2{SO3C(pz)3}(PPh3)] 8 and [ReO3{SO3C(pz)3}] 9, and their precursors [ReCl2{η2-N,O-N2C(O)Ph}(PPh3)2] 1 and [ReOCl3(PPh3)2] 6, act as selective catalysts (or catalyst precursors), in a single-pot process, for the oxidation of ethane, in the presence of potassium peroxodisulfate K2S2O8, in trifluoroacetic acid (TFA), to give acetic acid, in a remarkable yield (up to ca. 40%) and under mild conditions (in some cases carboxylation can also occur to give propionic acid, but in a much lower yield). The catalytic peroxidative oxidation of ethane to acetaldehyde and of cyclohexane to cyclohexanone and cyclohexanol by an aqueous solution of H2O2 at room temperature is also achieved by using most of those catalyst precursors. The effects of a variety of factors were studied towards the optimization of the processes which are shown to proceed via both C-centered and O-centered radical mechanisms.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationALEGRIA, Elisabete C. B. A.; [et al] – Pyrazole and trispyrazolylmethane rhenium complexes as catalysts for ethane and cyclohexane oxidations. Applied Catalysis A: General. ISSN 0926-860X. Vol. 317, N.º 1 (2007), pp. 53-52pt_PT
dc.identifier.doi10.1016/j.apcata.2006.09.038pt_PT
dc.identifier.issn0926-860X
dc.identifier.urihttp://hdl.handle.net/10400.21/12073
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationIPL/41/2003 - IPL projectpt_PT
dc.relationCatalytic carboxylation of alkanes
dc.relation.publisherversionhttps://pdf.sciencedirectassets.com/271346/1-s2.0-S0926860X06X0385X/1-s2.0-S0926860X06007186/main.pdf?X-Amz-Date=20200721T135703Z&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Signature=9c3f57906e08139d8193b52c19189b46fd784f70c726be6b815c10f409f6a126&X-Amz-Credential=ASIAQ3PHCVTYXBKAZSXM%2F20200721%2Fus-east-1%2Fs3%2Faws4_request&type=client&tid=prr-48dfeffc-18a5-4833-a2a3-f5d0a7195c40&sid=8a88f6178de3764c2498ecf27a50dd60f553gxrqb&pii=S0926860X06007186&X-Amz-SignedHeaders=host&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEI7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJHMEUCIEGOzWGBDL1yi6TArkXd8ATWxtdVVSEnMBuLdj5GoaAcAiEA1R24WGsrY5ySo%2BRSbOz1JtpOQuoTKGzLOdfwgkGRF2gqtAMIRxADGgwwNTkwMDM1NDY4NjUiDNGG3Vc8tLK19ztS3CqRA%2FDauxk5YynE3GxDeuh9FS122s%2FZ2ET5%2ByfXmdZLccSzO1uOdRxoUr1ynHuskLCfClmNi6x3NlE%2FODvI8apxcMRnB4Tnnpf4OY5NJvJc%2FzK729%2FjAWboufghl3VBLo3K5z%2FehZBL5t4gxou4KRRPS6RoPSuA4FeOPwN56DFBDauMjNAWLemNdEGsYISW43SRHpz3HheGySTgsqId4zL4zBTwn7G4gqzHMM7POiEhNtvv5gRVEKQ%2FsFGsnVuvVGDc0UmzABQGuhOPjbC4BH002r7%2BmpofZpo%2BNmIXjYIKtSCHdCr4h%2BzZ6NNIecTCiy6ViRN3I22PxXiTM%2BrTxLsKnK6%2FjTwHGmKFG%2FEa7%2Fuw6aygKM7MDzpLCykszqC%2FJNL6DQUCGK1Ji3tnIupW4sGn9uL6RoB6lZZ%2Bq%2FDMMntYCPzp1auTULdu3Y%2BhH7DRS21fib9VeUiVF8KFfHNYPaCVnyl0xVza22pfAngI%2FGRso0qUIE%2FGjzxmSqZxfRWKL%2FSUC5hhOe6CfG9qJdvrkWOUHv6qMJzY2%2FgFOusBEQTZ10RC8UYamwnnURaNBHKSAYuPMbB33tVvLTyHggVG6kPFFlf1%2F9aNNxzEHyXHB9MUqdbP11AzyW%2BgDNVZqp6IQr1tyk7ciAOt004aB8l1%2BKscgb0D3PpE74jUs9f9o85JM2XuhUbPA2KKEUwesufQf7WE7b%2FtYZdGggwjE5v0SHmFGGKtgwOfmaYYNUnxpaVAxN%2FMpPLJgAWgxDeV9BcEsNhnc7eUwxrX8mD%2FQi2Pkf92RUIRf5wlZ2ecdHlqSCLOovhxbnTfiBSuLT8Z1iWe1Zkx5Se62YaXzU0swqltV7SNMRpMfTLPtA%3D%3D&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&X-Amz-Expires=300&hash=326c356b38a67e075da9f2349c3694c62c880f014db5ee2ecb468be265462b3bpt_PT
dc.subjectAlkanespt_PT
dc.subjectFunctionalizationpt_PT
dc.subjectRheniumpt_PT
dc.subjectHomogeneous catalysispt_PT
dc.subjectOxidationpt_PT
dc.subjectEthanept_PT
dc.subjectCyclohexanept_PT
dc.titlePyrazole and trispyrazolylmethane rhenium complexes as catalysts for ethane and cyclohexane oxidationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCatalytic carboxylation of alkanes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FQUI%2F58821%2F2004/PT
oaire.citation.endPage52pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage43pt_PT
oaire.citation.titleApplied Catalysis A: Generalpt_PT
oaire.citation.volume317pt_PT
oaire.fundingStreamPOCI
person.familyNameAlegria
person.familyNameKirillova
person.familyNameMartins
person.familyNamePombeiro
person.givenNameElisabete
person.givenNameMarina V.
person.givenNameLuisa
person.givenNameArmando
person.identifier863202
person.identifier637885
person.identifier.ciencia-id8C1F-851A-9F1C
person.identifier.ciencia-id921F-C685-1674
person.identifier.ciencia-idE218-E297-A4EA
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0003-4060-1057
person.identifier.orcid0000-0002-4375-828X
person.identifier.orcid0000-0002-5403-9352
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridE-9945-2012
person.identifier.ridG-6210-2011
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id8315848300
person.identifier.scopus-author-id8526661400
person.identifier.scopus-author-id8650947800
person.identifier.scopus-author-id7006067269
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6d781c38-c45e-4159-b795-8c8675606160
relation.isAuthorOfPublicationc1be92cb-3d93-4f5c-a3f8-cc9ba235ffef
relation.isAuthorOfPublication8ed70b09-b4d3-4a5d-9f75-12b13a332204
relation.isAuthorOfPublication6d18ff2e-5c33-4010-b1e7-964c72349813
relation.isAuthorOfPublication.latestForDiscovery6d18ff2e-5c33-4010-b1e7-964c72349813
relation.isProjectOfPublication98434ea3-f53d-4e21-8ea7-97e75d396373
relation.isProjectOfPublication.latestForDiscovery98434ea3-f53d-4e21-8ea7-97e75d396373

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Pyrazole_ECBAAlegria.pdf
Size:
411.45 KB
Format:
Adobe Portable Document Format
Download

Collections

ISEL - Eng. Quim. Biol. - Artigos