Výsledky vyhledávání - "Stuart C. D. Kennington"

Protected syn-Aldol Compounds from Direct, Catalytic, and Enantioselective Reactions of N-Acyl-1,3-oxazinane-2-thiones with Aromatic Acetals

Autor: Miguel Mellado-Hidalgo, Elias A. Romero-Cavagnaro, Sajanthanaa Nageswaran, Sabrina Puddu, Stuart C. D. Kennington, Anna M. Costa, Pedro Romea, Fèlix Urpí, Gabriel Aullón, Mercè Font-Bardia

Publikováno v: Organic Letters. 25:659-664

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffb6d6de8d8163b94740d088e76107ee
https://doi.org/10.1021/acs.orglett.2c04254

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Direct and Asymmetric Aldol Reactions of N-Azidoacetyl-1,3-thiazolidine-2-thione Catalyzed by Chiral Nickel(II) Complexes. A New Approach to the Synthesis of -Hydroxy--Amino Acids

Autor: Saul F. Teloxa, Miguel Mellado‐Hidalgo, Stuart C. D. Kennington, Pedro Romea, Fèlix Urpí, Gabriel Aullón, Mercè Font‐Bardia

A direct and asymmetric triisopropylsilyltrifluoromethanesulfonate (TIPSOTf) mediated aldol reaction of N-azidoacetyl-1,3-thiazolidine-2-thione with aromatic aldehydes catalyzed by a chiral nickel(II)-Tol-BINAP complex has been developed (BINAP=2,2'-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::630c027506f0f863305bc0fc27aeb5a7
http://hdl.handle.net/2445/191586

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Direct and enantioselective aldol reactions catalyzed by chiral nickel(II) complexes

Autor: Stuart C. D. Kennington, Mercè Font-Bardia, Miguel Mellado-Hidalgo, Sabrina Puddu, Saul F. Teloxa, Gabriel Aullón, Oriol Galeote, Marina Bellido, Pedro Romea, Fèlix Urpí

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Angewandte Chemie (International Ed. in English)

A direct and asymmetric aldol reaction of N‐acyl thiazinanethiones with aromatic aldehydes catalyzed by chiral nickel(II) complexes is reported. The reaction gives the corresponding O‐TIPS‐protected anti‐aldol adducts in high yields and with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3850655aad0463740b21cf564719fb2b
http://hdl.handle.net/2445/178957

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Direct and asymmetric nickel(II)-catalyzed construction of carbon−carbon bonds from N‑acyl thiazinanethiones

Autor: Jesus Rodrigalvarez, Gabriel Aullón, Stuart C. D. Kennington, Laura Ferré, Adam J. Taylor, Pedro Romea, Mercè Font-Bardia, Fèlix Urpí

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname

A wide array of new N-acyl thiazinanethiones are employed in a number of direct and enantioselective carbon-carbon bond forming reactions catalyzed by nickel(II) complexes. The electrophilic species are mostly prepared in situ from ortho esters, meth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ce53573ba6e9c571bd5f9bb79b34f82
http://hdl.handle.net/2445/127694

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Stereoselective Synthesis of the C9–C19 Fragment of Peloruside A

Autor: Pedro Romea, Fèlix Urpí, Juan Manuel Romo, Stuart C. D. Kennington

Publikováno v: Organic Letters. 18:3018-3021

A concise synthesis of the C9-C19 fragment of peloruside A that is both highly stereoselective and efficient is described. Achieving an overall yield of 23% over 14 steps, this synthesis not only is high yielding but also involves four chromatography

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15c95b1a3c70d0074f21e292db34fc63
https://doi.org/10.1021/acs.orglett.6b01428

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General and stereoselective aminoxylation of biradical titanium(IV) enolates with TEMPO: a detailed study on the effect of the chiral auxiliary

Autor: Mercè Font-Bardia, Alejandro Gómez-Palomino, Stuart C. D. Kennington, Ernest Salomó, Fèlix Urpí, Pedro Romea

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de la UB
Universidad de Barcelona

A comprehensive analysis of the influence of the chiral auxiliary on the α-aminoxylation of titanium(iv) enolates with TEMPO indicated that (S) 4-tert-butyl-1-oxazolidine-2-thione is the most appropriate scaffold to provide a single diastereomer in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f5403a22ab0b8f5cf925f488aa8ffcd
http://hdl.handle.net/2445/127958

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Diastereoselective and Catalytic α-Alkylation of Chiral N-Acyl Thiazolidinethiones with Stable Carbocationic Salts

Autor: Mercè Font-Bardia, Pedro Romea, Stuart C. D. Kennington, Juan Manuel Romo, Fèlix Urpí, Mònica Mato Ferré

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname

Direct nickel-catalyzed alkylation of chiral N-acyl-4-isopropyl-1,3-thiazolidine-2-thiones using a commercially available nickel(II) complex, (Me3P)2NiCl2, has been developed for tropylium and trityl tetrafluoroborate salts. The reaction provides a s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76e72cd1fec664e75171ea3fe7d20ba9
https://pubmed.ncbi.nlm.nih.gov/28525716

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