Results 11 to 20 of about 685,322 (306)

Relay cross metathesis reactions of vinylphosphonates [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2014
Dimethyl (β-substituted) vinylphosphonates do not readily undergo cross metathesis reactions with Grubbs catalyst and terminal alkenes. However, the corresponding mono- or diallyl vinylphosphonate esters undergo facile cross metathesis reactions.
Raj K. Malla   +2 more
doaj   +3 more sources

Capture cross sections from (p,d) reactions [PDF]

open access: yesEPJ Web of Conferences, 2017
Cross sections for compound-nuclear reactions involving unstable targets are important for many applications, but can often not be measured directly. Several indirect methods have been proposed to determine neutron capture cross sections for unstable ...
Escher J.E.   +5 more
doaj   +4 more sources

Inhibition of (dppf)nickel-catalysed Suzuki-Miyaura cross-coupling reactions by α-halo-N-heterocycles [PDF]

open access: yes, 2021
A nickel/dppf catalyst system was found to successfully achieve the Suzuki-Miyaura cross-coupling reactions of 3- and 4-chloropyridine but not 2-chloropyridine and other α-halo-N-heterocycles.
Megan, Greaves   +6 more
core   +1 more source

Transition Metal Catalyzed Cross-Coupling Reactions [PDF]

open access: yes, 2021
Transition metal-catalyzed cross-coupling reactions have proved to be powerful tools for carbon–carbon as well as carbon–heteroatom bond formation in the development of synthetic methodologies for applications ranging from pharmaceuticals to materials ...

core   +1 more source

Biaryl bond formation through biocatalytic oxidative cross-coupling reactions [PDF]

open access: yes, 2021
Biocatalysis offers compelling advantages in synthesis, often becoming the method of choice based on sustainability, safety, and selectivity considerations.
Suman, Chakrabarty   +8 more
core   +1 more source

Dimsyl Anion Enables Visible-Light-Promoted Charge Transfer in Cross-Coupling Reactions of Aryl Halides [PDF]

open access: yes, 2021
A simple and mild methodology is reported for visible-light-promoted synthesis of unsymmetrical chalconides ena- bled by dimsyl anion in the absence of transition-metals or photoredox catalysts. The cross-coupling reaction between aryl halides and diaryl
Amara, Spencer   +3 more
core   +1 more source

Deaminative vinylation and arylation cross-coupling reactions [PDF]

open access: yes, 2023
Watson, Mary P.This thesis focuses on nickel-catalyzed vinylation and arylation cross-coupling reactions via C-N bond activation. Chapter 1 describes a vinylation method that was inspired by an analogous alkylation.
Lucas Baca, Diana
core   +1 more source

Cross-Coupling Reactions of 5-Bromo-1,2,3-triazines [PDF]

open access: yes, 2022
An efficient Pd catalyzed cross-coupling method for 5-bromo-1,2,3-triazine is described. Optimization of the reaction conditions al-lowed for the preparation of a representative scope of (hetero)aryl-1,2,3-triazines (14 examples, up to 97% yield ...
Lukas, Hoff   +2 more
core   +1 more source

Outcome of preoperative cefazolin use for infection prophylaxis in patients with self-reported penicillin allergy

open access: yesBMC Surgery, 2023
Background Cephalosporins are the preferred antibiotics for prophylaxis against surgical site infections. Most studies give a rate of combined IgE and non-IgE penicillin allergy yet it is recommended that cephalosporins be avoided in patients having the ...
Laura Michaud   +3 more
doaj   +1 more source

Performance of 2 Commercial Serologic Tests for Diagnosing Zika Virus Infection

open access: yesEmerging Infectious Diseases, 2019
Reliable serologic tests are needed for diagnosis and surveillance of Zika virus infection. We evaluated the Euroimmun and Dia.Pro serologic tests for detection of Zika virus IgM and IgG by using a panel of 199 samples from a region endemic for ...
Séverine Matheus   +7 more
doaj   +1 more source

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