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Showing 25 to 36 of 316 entries
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Regioselective ring-opening metathesis-cross metathesis of bridgehead-substituted 7-azanorbornene.

Organic letters

Carreras J, Avenoza A, Busto JH, Peregrina JM.
PMID: 17346053
Org Lett. 2007 Mar 29;9(7):1235-8. doi: 10.1021/ol0631051. Epub 2007 Mar 09.

[structure: see text]. In this paper we describe a highly regioselective ring-opening metathesis-cross metathesis (ROM-CM) process between methyl N-Boc-7-azabicyclo[2.2.1]hept-2-en-1-carboxylate, a bridgehead-substituted 7-azanorbornene system, and electron-poor olefins. The reaction opens the way to the synthesis of interesting alpha-amino diacids and...

Concurrent symmetries: the interplay between local and global molecular symmetries.

Chemistry (Weinheim an der Bergstrasse, Germany)

Echeverría J, Carreras A, Casanova D, Alemany P, Alvarez S.
PMID: 21207632
Chemistry. 2011 Jan 03;17(1):359-67. doi: 10.1002/chem.201002128. Epub 2010 Dec 07.

We analyze in this article the degree to which different groups of atoms retain local symmetries when assembled in a molecule. This study is carried out by applying continuous symmetry measures to several families of mixed sandwiches, a variety...

Influence of meat quality and NaCl percentage on glutathione peroxidase activity and values for acid-reactive substances of raw and dry-cured Longissimus dorsi.

Meat science

Sárraga C, Carreras I, García Regueiro JA.
PMID: 22061759
Meat Sci. 2002 Dec;62(4):503-7. doi: 10.1016/s0309-1740(02)00039-6.

Fresh and dry-cured porcine loins (Longissimus dorsi) were analysed for glutathione peroxidase (GSHPx) activity and acid reactive substances (TBARS) in order to assess the influence of meat quality and salt (NaCl) concentration on oxidative stability. The results showed lower...

Optimization of systemic treatments for chronic plaque psoriasis. Recommendations for switching and transitioning.

Giornale italiano di dermatologia e venereologia : organo ufficiale, Societa italiana di dermatologia e sifilografia

Gisondi P, Amerio P, Amoroso GF, Antonucci VA, Bardazzi F, Buongiorno MR, Bruni P, Campanati A, Caproni M, Carlesimo M, Carrera CG, Cianchino G, Cimmino G, Costanzo A, Cozzani E, Dapavo P, D'amico D, De Simone C, Del Giglio M, Di Nuzzo S, Gai F, Galluccio AG, Goffredo A, Gualdi G, Guarneri C, Kokelj F, Lasagni C, Loconsole F, Longo V, Malagoli P, Miracapillo A, Mugheddu C, Parodi A, Pellegrino M, Peserico A, Piaserico S, Pistone G, Potenza C, Plumari A, Stingeni L, Strippoli D, Travaglino M, Girolomoni G.
PMID: 24675369
G Ital Dermatol Venereol. 2013 Dec;148(6):1-10.

AIM: The aim of this study was to provide practical recommendations for optimizing the use of conventional and biological systemic treatments for moderate-severe chronic plaque psoriasis, particularly in case of transitioning and switching.METHODS: A total number of 147 dermatologists...

Halogen bonding effects on the outcome of reactions at metal centres.

Chemical communications (Cambridge, England)

Carreras L, Benet-Buchholz J, Franconetti A, Frontera A, van Leeuwen PWNM, Vidal-Ferran A.
PMID: 30729960
Chem Commun (Camb). 2019 Feb 19;55(16):2380-2383. doi: 10.1039/c8cc08884e.

Key findings regarding the effects of ligand preorganisation via halogen bonding on the outcome of reactions at rhodium are reported. An unprecedented halogen bonding-mediated oxidative addition of CAr-I bonds to rhodium with efficient formation of cyclometallated species deserves special...

Enantio- and Diastereoselective Cyclopropanation of 1-Alkenylboronates: Synthesis of 1-Boryl-2,3-Disubstituted Cyclopropanes.

Angewandte Chemie (International ed. in English)

Carreras J, Caballero A, Pérez PJ.
PMID: 29226562
Angew Chem Int Ed Engl. 2018 Feb 23;57(9):2334-2338. doi: 10.1002/anie.201710415. Epub 2018 Jan 02.

A novel, highly enantio- and diastereoselective synthesis of 1-boryl-2,3-disubstituted cyclopropanes has been developed by means of the cyclopropanation of alkenylboronates with ethyl diazoacetate in the presence of catalytic amounts of a chiral copper(I) complex. The products can also be...

Far-field propagation of partially coherent laser light in random mediums.

Optics express

Shakir SA, Clark TT, Cargill DS, Carreras R.
PMID: 30114819
Opt Express. 2018 Jun 11;26(12):15609-15622. doi: 10.1364/OE.26.015609.

The irradiance of a partially coherent light propagated under the influence of multiple random effects is shown to be the convolution of the irradiance propagated in a vacuum with the system's point spread function representing the random effects. This...

Catalytic Functionalization of C-H Bonds of Azulene by Carbene/Nitrene Incorporation.

The Journal of organic chemistry

Carreras J, Popowski Y, Caballero A, Amir E, Pérez PJ.
PMID: 30032616
J Org Chem. 2018 Sep 21;83(18):11125-11132. doi: 10.1021/acs.joc.8b01731. Epub 2018 Jul 26.

The selective catalytic functionalization of the C-H bond of azulene upon incorporation of carbene or nitrene units with metal-based catalysts is described. Ethyl diazoacetate or ArI═NTs are employed as carbene or nitrene precursors, respectively. The azulene derivatives are subsequently...

The Long Way of a "Lost Pigtail": A Unique Complication of J-Tube in Duodopa Therapy.

Movement disorders clinical practice

Cossu G, Sarchioto M, Melis M, Manca D, Sitzia L, Melis M, Carreras P.
PMID: 30363447
Mov Disord Clin Pract. 2017 Oct 26;5(1):101-102. doi: 10.1002/mdc3.12557. eCollection 2018.

No abstract available.

A Combination of Surgical Techniques to Repair a Giant Traumatic Macular Hole.

Case reports in ophthalmological medicine

Ch'ng SW, Elaraoud I, Karl D, Kalogeropoulos D, Lee R, Carreras E.
PMID: 30627468
Case Rep Ophthalmol Med. 2018 Dec 09;2018:7595873. doi: 10.1155/2018/7595873. eCollection 2018.

A 38-year-old man with a traumatic full-thickness macular hole (FTMH) presented to our eye casualty department with a sudden deterioration of his right eye vision to hand movements over the past one week. The suspected traumatic FTMH was present...

Influence of Hydrodynamics and Hematocrit on Ultrasound-Induced Blood Plasmapheresis.

Micromachines

González I, Andrés RR, Pinto A, Carreras P.
PMID: 32751982
Micromachines (Basel). 2020 Jul 31;11(8). doi: 10.3390/mi11080751.

Acoustophoretic blood plasma separation is based on cell enrichment processes driven by acoustic radiation forces. The combined influence of hematocrit and hydrodynamics has not yet been quantified in the literature for these processes acoustically induced on blood. In this...

Access to α-Aminophosphonic Acid Derivatives and Phosphonopeptides by [Rh(P-OP)]-Catalyzed Stereoselective Hydrogenation.

The Journal of organic chemistry

Fernández-Pérez H, Lenartowicz P, Carreras L, Grabulosa A, Kafarski P, Vidal-Ferran A.
PMID: 32527088
J Org Chem. 2020 Nov 20;85(22):14779-14784. doi: 10.1021/acs.joc.0c00914. Epub 2020 Jun 30.

The hydrogenation of

Showing 25 to 36 of 316 entries