Source:http://linkedlifedata.com/resource/pubmed/id/12398494
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:12398494 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0001975 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0002068 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0035973 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0037098 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0076150 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0030011 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0439855 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C0175921 | lld:lifeskim |
| pubmed-article:12398494 | lifeskim:mentions | umls-concept:C1567997 | lld:lifeskim |
| pubmed-article:12398494 | pubmed:issue | 22 | lld:pubmed |
| pubmed-article:12398494 | pubmed:dateCreated | 2002-10-25 | lld:pubmed |
| pubmed-article:12398494 | pubmed:abstractText | A silica gel-immobilized [(Me(3)tacn)Ru(III)(CF(3)COO)(2)(H(2)O)]CF(3)CO(2) complex (1-SiO(2), Me(3)tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane) was prepared by simple impregnation, and the catalyst was characterized by powdered X-ray diffraction, nitrogen adsorption/desorption, Raman, and diffuse reflectance UV-vis spectroscopies. The supported Ru catalyst can effect facile oxidation of alcohols by tert-butyl hydroperoxide (TBHP). Primary and secondary benzyl, allylic, and propargylic alcohols were transformed to their corresponding aldehydes and ketones in excellent yields; no oxidation of the C=C and Ctbd1;C bonds was observed for the allylic and propargylic alcohol oxidations. Likewise alkene epoxidation by TBHP can be achieved by 1-SiO(2); cycloalkenes such as norbornene and cyclooctene were oxidized to their exo-epoxides exclusively in excellent yields (>95%). The 1-SiO(2) catalyst can be recycled and reused for consecutive alcohol and alkene oxidations without significant loss of catalytic activity and selectivity; over 9000 turnovers have been attained for the oxidation of 1-phenyl-1-propanol to 1-phenyl-1-propanone. 4-Substituted phenols were oxidized by the "1 + TBHP" protocol to give exclusively ruthenium-catecholate complexes, which were characterized by UV-vis and ESI-MS spectroscopies. No (tert-butyldioxy)cyclohexadienone and other radical coupling/overoxidation products were produced using the "1 + TBHP" protocol. The formation of ruthenium-catecholate is proposed to proceed via ortho-hydroxylation of phenol. | lld:pubmed |
| pubmed-article:12398494 | pubmed:language | eng | lld:pubmed |
| pubmed-article:12398494 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12398494 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:12398494 | pubmed:month | Nov | lld:pubmed |
| pubmed-article:12398494 | pubmed:issn | 0022-3263 | lld:pubmed |
| pubmed-article:12398494 | pubmed:author | pubmed-author:YuWing-YiuWY | lld:pubmed |
| pubmed-article:12398494 | pubmed:author | pubmed-author:CheChi-MingCM | lld:pubmed |
| pubmed-article:12398494 | pubmed:author | pubmed-author:ZhuNian-YongN... | lld:pubmed |
| pubmed-article:12398494 | pubmed:author | pubmed-author:CheungWai-Hun... | lld:pubmed |
| pubmed-article:12398494 | pubmed:author | pubmed-author:YipWing-PingW... | lld:pubmed |
| pubmed-article:12398494 | pubmed:issnType | lld:pubmed | |
| pubmed-article:12398494 | pubmed:day | 1 | lld:pubmed |
| pubmed-article:12398494 | pubmed:volume | 67 | lld:pubmed |
| pubmed-article:12398494 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:12398494 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:12398494 | pubmed:pagination | 7716-23 | lld:pubmed |
| pubmed-article:12398494 | pubmed:year | 2002 | lld:pubmed |
| pubmed-article:12398494 | pubmed:articleTitle | A silica gel-supported ruthenium complex of 1,4,7-trimethyl-1,4,7-triazacyclononane as recyclable catalyst for chemoselective oxidation of alcohols and alkenes by tert-butyl hydroperoxide. | lld:pubmed |
| pubmed-article:12398494 | pubmed:affiliation | Department of Chemistry and Open Laboratory of Chemical Biology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Pokfulam Road, Hong Kong. | lld:pubmed |
| pubmed-article:12398494 | pubmed:publicationType | Journal Article | lld:pubmed |