Výsledky vyhledávání - "Juan Manuel Romo"

Direct anti Glycolate Aldol Reaction of Protected Chiral N -Hydroxyacetyl Thiazolidinethiones with Acetals Catalyzed by a Nickel(II) Complex

Autor: Juan Manuel Romo, Pedro Romea, Fèlix Urpí

Publikováno v: European Journal of Organic Chemistry. 2019:6296-6305

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::919d69d3ca88e4c58666a2cc964636cc
https://doi.org/10.1002/ejoc.201901097

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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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Stereoselective Alkylation of (S)-N-Acyl-4-isopropyl-1,3-thiazolidine-2-thiones Catalyzed by (Me3P)2NiCl2

Autor: Juan Manuel Romo, Javier Fernández-Valparís, Pedro Romea, Mercè Font-Bardia, Fèlix Urpí, Hubert Kowalski

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona

The structurally simple (Me3P)2NiCl2 complex catalyzes SN1-type alkylations of chiral N-acyl thiazolidinethiones with diarylmethyl methyl ethers and other stable carbenium cations. The former can contain a variety of functional groups and heteroatoms

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f242d5fe42fc0af92d63e8c139ef51dc
https://doi.org/10.1021/acs.orglett.5b01626

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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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ChemInform Abstract: Stereoselective Alkylation of (S)-N-Acyl-4-isopropyl-1,3-thiazolidine-2-thiones Catalyzed by (Me3P)2NiCl2

Autor: Mercè Font-Bardia, Juan Manuel Romo, Pedro Romea, Javier Fernández-Valparís, Fèlix Urpí, Hubert Kowalski

Publikováno v: ChemInform. 46

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bde0ad6ac80e02b6fc03e81c1e84d6d
https://doi.org/10.1002/chin.201546024

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ChemInform Abstract: Stereoselective Aminoxylation of Biradical Titanium Enolates with TEMPO

Autor: Juan Manuel Romo, Ricard Solà, Pedro Romea, Miquel Pellicena, Mercè Font-Bardia, Fèlix Urpí, Alejandro Gómez-Palomino

Publikováno v: ChemInform. 46

Conversion of chiral N-acyl-4-benzyl-oxazolidinones (I) to titanium enolates and subsequent quenching with TEMPO results in an efficient formation of 2-aminoxylation adducts in excellent yields and good enantioselectivities.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6b720bd634fc5170536581f92ad209c
https://doi.org/10.1002/chin.201506022

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Stereoselective aminoxylation of biradical titanium enolates with TEMPO

Autor: Pedro Romea, Miquel Pellicena, Alejandro Gómez-Palomino, Juan Manuel Romo, Mercè Font-Bardia, Fèlix Urpí, Ricard Solà

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona

A highly efficient and straightforward aminoxylation of titanium(IV) enolates from (S)-N-acyl-4-benzyl-5,5-dimethyl-1,3-oxazolidin-2-ones with TEMPO has been developed. A wide array of functional groups on the acyl moiety, including alkyl and aryl su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dafd241a6e8c76074379958cfcbd1b7
https://pubmed.ncbi.nlm.nih.gov/25043481

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Patrimonio mundial y comunidad local: opiniones confrontadas sobre Atapuerca, Burgos (España) / World heritage and local community: confronted opinions on Atapuerca, Burgos (Spain)

Autor: Conforti, María Eugenia, Mariano, Mercedes, Lomana, Juan Carlos Díez Fernandez, Endere, María Luz

Publikováno v: Patrimônio e Memória; v. 15, n. 1 (2019): PATRIMÔNIO E MEMÓRIA; 367-387
Patrimônio e Memória
Universidade Estadual Paulista (UNESP)
instacron:UNESP

En este trabajo se presentan las opiniones divergentes de los habitantes de dos localidades adyacentes al sitio arqueológico del Patrimonio Mundial “Sierra de Atapuerca”. Los resultados mostraron diferencias entre los habitantes de las dos ciuda

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::006266acaa0b783df3ea68455016898c
http://pem.assis.unesp.br/index.php/pem/article/view/942

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