Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Cathleen M. Yung"'
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C—H Bond Activation by Iridium and Rhodium Complexes: Catalytic Hydrogen—Deuterium Exchange and C—C Bond-Forming Reactions
Autor: Reema K. Thalji, Steven R. Klei, Jeffrey T. Golden, Robert G. Bergman, Jonathan A. Ellman, T. Don Tilley, Kian L. Tan, Cathleen M. Yung, Kateri A. Ahrendt
Publikováno v: ChemInform. 36
The metal-mediated activation of carbon-hydrogen bonds has the potential of leading to important fundamental insights, as well as to advances in large-scale industrial and synthetic organic chemical processes. Our initialfinding of C-H oxidative addi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::acff9432519de33784ebb13ed931dd0e
https://doi.org/10.1002/chin.200524251
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3
Synthesis and reactivity of the hydrido- and alkylrhenium methylidene complexes Cp*(PMe3)2(R)Re=CH2 (R = H, CH3)
Autor: Robert G. Bergman, Richard L. Martin, Cathleen M. Yung, John Veltheer, P. Jeffrey Hay, Jennifer R. Krumper
Publikováno v: Journal of the American Chemical Society. 126(45)
Protonolysis of the dimethylrhenium(III) compound Cp(PMe(3))(2)Re(CH(3))(2) (3) led to formation of the highly reactive hydridorhenium methylidene compound [Cp(PMe(3))(2)Re(CH(2))(H)][OTf] (4), which was characterized spectroscopically at low tempera
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4df7c1c3cb92b5f408261cc2a72050e7
https://pubmed.ncbi.nlm.nih.gov/15535706
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4
Stoichiometric and catalytic H/D incorporation by cationic iridium complexes: a common monohydrido-iridium intermediate
Autor: Robert G. Bergman, Cathleen M. Yung, Marc B. Skaddan
Publikováno v: Journal of the American Chemical Society. 126(40)
A mechanistic study of the stoichiometric and catalytic H/D exchange reactions involving cationic iridium complexes is presented. Strong evidence suggests that both stoichiometric and catalytic reactions proceed via a monohydrido-iridium species. Sto
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24ac7427271be91bad378a3427538916
https://pubmed.ncbi.nlm.nih.gov/15469302
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6
Stoichiometric and catalytic deuterium and tritium labeling of 'unactivated' organic substrates with cationic Ir(III) complexes
Autor: Robert G. Bergman, Marc B. Skaddan, Cathleen M. Yung
Publikováno v: Organic letters. 6(1)
[reaction: see text] Ir(III) complex [Cp(PMe(3))IrMe(CH(2)Cl(2))][BAr(f)] (1) was used to introduce deuterium stoichiometrically into substituted naphthalene/benzene templates and several "drug-like" entities. The exchange process is tolerant of a wi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::100e248203afd9f0fc4c33aa6f52cde7
https://pubmed.ncbi.nlm.nih.gov/14703338
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7
Electronic and medium effects on the rate of arene C [bond] H activation by cationic Ir(III) complexes
Autor: David M. Tellers, Robert G. Bergman, Dan R. Adamson, Bruce A. Arndtsen, Cathleen M. Yung
Publikováno v: Journal of the American Chemical Society. 124(7)
A detailed mechanistic study of arene C [bond] H activation in CH(2)Cl(2) solution by Cp(L)IrMe(X) [L = PMe(3), P(OMe)(3); X = OTf, (CH(2)Cl(2))BAr(f); (BAr(f) = B[3,5-C(6)H(3)(CF(3))(2)](4))(-)] is presented. It was determined that triflate dissocia
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87190b05ad4230dfb5cbf356356f06de
https://pubmed.ncbi.nlm.nih.gov/11841308
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8
Unexpected C−C Bond Cleavage and C−C Bond Formation Observed in the Reaction of a Cationic Iridium Complex with Heteroatom-Substituted Cyclopropanes
Autor: Mitchell R. Anstey, Robert G. Bergman, Juana Du, Cathleen M. Yung
Publikováno v: Journal of the American Chemical Society. 129:776-777
Iridium complex Cp*(PMe3)Ir(CH3)OTf (1) and alkylaminocyclopropanes react via a well-understood initial C−H bond activation with a subsequent C−C bond-breaking step to yield a variety of π-allyl complexes [Cp*(PMe3)Ir(η3-C3H4NR1R2)][OTf] (R1 =
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d5b11c9e1f3a5a2434bc61707112511
https://doi.org/10.1021/ja068312a
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9
Highly dispersed clay–polyolefin nanocomposites free of compatibilizers, via the in situ polymerization of α-olefins by clay-supported catalysts
Autor: Toru Suzuki, Hironari Sano, Rene S. Rojas, Vikram Khanna, Cathleen M. Yung, Fumihiko Shimizu, Susannah L. Scott, Brian C. Peoples
Publikováno v: Chemical Communications. :4186
In situ polymerization by certain transition metal catalysts supported on and activated by acid-treated montmorillonite produces well-dispersed clay–polyolefin nanocomposites, without requiring either organic surfactants to be present in the clay p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d325c067080877e16e7ac011253aa24f
https://doi.org/10.1039/b718241d
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