Zobrazeno 1 - 10 of 14 pro vyhledávání: '"Mauro Perseghini"'
1
Akademický článek
Development of the titanium–TADDOLate-catalyzed asymmetric fluorination of β-ketoesters
Autor: Lukas Hintermann, Mauro Perseghini, Antonio Togni
Publikováno v: Beilstein Journal of Organic Chemistry, Vol 7, Iss 1, Pp 1421-1435 (2011)
Titanium-based Lewis acids catalyze the α-fluorination of β-ketoesters by electrophilic N–F-fluorinating reagents. Asymmetric catalysis with TADDOLato–titanium(IV) dichloride (TADDOL = α,α,α',α'-tetraaryl-(1,3-dioxolane-4,5-diyl)-dimethanol
Externí odkaz: https://doaj.org/article/1d66af734a144639b2a45a7edba597b7
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2
Akademický článek
Developing Catalytic Enantioselective Fluorination
Autor: Antonio Togni, Antonio Mezzetti, Peter Barthazy, Claus Becker, Ingrid Devillers, Richard Frantz, Lukas Hintermann, Mauro Perseghini, Maria Sanna
Publikováno v: CHIMIA, Vol 55, Iss 10 (2001)
The background that led to the development ofthe first catalytic and enantioselective carbon-fluorine bond-forming reaction is presented. Two different approaches, i.e. the use of nucleophilic and electrophilic fluorinating agents, respectively, have
Externí odkaz: https://doaj.org/article/1e204b200ded4f87896ccaab020a620d
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3
Substrate Range of the Titanium TADDOLate Catalyzed Asymmetric Fluorination of Activated Carbonyl Compounds
Autor: Andreas Bertogg, Antonio Togni, Lukas Hintermann, Maria Sanna, Dominique P. Huber, Mauro Perseghini
Publikováno v: Helvetica Chimica Acta. 95:353-403
The substrate range of the [TiCl2(TADDOLate)] (TADDOL=α,α,α′,α′-tetraaryl-1,3-dioxolane-4,5-dimethanol)-catalyzed asymmetric α-fluorination of activated β-carbonyl compounds has been investigated. Optimal conditions for catalysis are charac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::56aec615674ae63ce1d25351908138dc
https://doi.org/10.1002/hlca.201100375
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4
Structural and stereochemical aspects of the enantioselective halogenation of 1,3-dicarbonyl compounds catalyzed by Ti(TADDOLato) complexes
Autor: Massimo Massaccesi, Antonio Togni, Yanyun Liu, Mauro Perseghini
Publikováno v: Tetrahedron. 62:7180-7190
Complexes of the type [Ti(1-Np-TADDOLato)(carbonylenolato)2] (3a–d), derived from β-keto esters, have been prepared and structurally characterized by NMR and X-ray crystallography. In solution, two main diastereoisomeric forms were identified. In
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2320a489f3754231fdad91b96bf4c82e
https://doi.org/10.1016/j.tet.2005.12.071
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5
Complexes of Rhodium( I ) and Iridium( I ) with the Chiral Tridentate Phosphane Pigiphos: Structure and Reactivity Studies
Autor: Pierluigi Barbaro, Lukas Hintermann, Mauro Perseghini, Antonio Togni
Publikováno v: European journal of inorganic chemistry
(2003): 601–609. doi:10.1002/ejic.200390082
info:cnr-pdr/source/autori:Hintermann, Lukas; Perseghini, Mauro, Barbaro, Pierluigi; Togni, Antonio/titolo:Complexes of Rhodium(I) and Iridium(I) with the Chiral Tridentate Phosphane Pigiphos: Structure and Reactivity Studies/doi:10.1002%2Fejic.200390082/rivista:European journal of inorganic chemistry (Print)/anno:2003/pagina_da:601/pagina_a:609/intervallo_pagine:601–609/volume
The chiral ferrocenyltriphosphane Pigiphos [bis{(S)-1-[(R)-2-(diphenylphosphanyl)ferrocenyl]ethyl}cyclohexylphosphane] forms four-coordinate complexes with IrI and RhI. The tridentate ligand assumes different conformations in the derivatives [Rh(CO)(
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24f7d5ba7dde5d20dcb4993344b698bf
https://doi.org/10.1002/ejic.200390082
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7
ChemInform Abstract: Substrate Range of the Titanium TADDOLate Catalyzed Asymmetric Fluorination of Activated Carbonyl Compounds
Autor: Dominique P. Huber, Antonio Togni, Maria Sanna, Andreas Bertogg, Mauro Perseghini, Lukas Hintermann
Publikováno v: ChemInform. 43
The substrate range of the [TiCl2(TADDOLate)] (TADDOL=α,α,α′,α′-tetraaryl-1,3-dioxolane-4,5-dimethanol)-catalyzed asymmetric α-fluorination of activated β-carbonyl compounds has been investigated. Optimal conditions for catalysis are charac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::22267e3088615485356843652b639c7f
https://doi.org/10.1002/chin.201230023
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8
Development of the titanium–TADDOLate-catalyzed asymmetric fluorination of β-ketoesters
Autor: Antonio Togni, Lukas Hintermann, Mauro Perseghini
Publikováno v: Beilstein Journal of Organic Chemistry, Vol 7, Iss 1, Pp 1421-1435 (2011)
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, 7
Titanium-based Lewis acids catalyze the α-fluorination of β-ketoesters by electrophilic N–F-fluorinating reagents. Asymmetric catalysis with TADDOLato–titanium(IV) dichloride (TADDOL = α,α,α',α'-tetraaryl-(1,3-dioxolane-4,5-diyl)-dimethanol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a24c9d8bfa9572d0ac7e62ed07c30bd9
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10
Titanium-catalyzed stereoselective geminal heterodihalogenation of beta-ketoesters
Autor: Antonio Togni, Mauro Perseghini, Lukas Hintermann, Richard Frantz, Diego Broggini
Publikováno v: Organic letters. 5(10)
[reaction: see text] beta-Ketoesters can be effectively monofluorinated with F-TEDA using CpTiCl(3) as a catalyst. With the use of this catalyst, the extent of the competing difluorination does not reach 10%. [TiCl(2)(TADDOLato)] complexes catalyze t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9c19e15db39a85f868372361f3f2792
https://pubmed.ncbi.nlm.nih.gov/12735758
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