Results 11 to 20 of about 43,175 (307)

Domino alkylation-cyclization reaction of propargyl bromides with thioureas/thiopyrimidinones: A new facile synthesis of 2-aminothiazoles and 5H-thiazolo[3,2-a]pyrimidin-5-ones [PDF]

open access: yes, 2009
A new synthesis of 2-aminothiazoles and 5H-thiazolo[3,2-a]pyrimidin-5-ones was developed as a domino alkylation-cyclization reaction of propargyl bromides with thioureas and thio¬pyrimidinones, respectively.
Bernardini, Martina   +3 more
core   +1 more source

Quantifying the search for solid Li-ion electrolyte materials by anion: a data-driven perspective [PDF]

open access: yes, 2019
We compile data and machine learned models of solid Li-ion electrolyte performance to assess the state of materials discovery efforts and build new insights for future efforts.
Cheon, Gowoon   +3 more
core   +3 more sources

Synthesis of long-chain alkyl and alkenyl bromides

open access: yesJournal of Lipid Research, 1966
Long-chain alkyl and alkenyl bromides are obtained in quantitative yields by the reaction of methanesulfonates with anhydrous magnesium bromide in absolute ether; cis-trans isomerization of double bonds does not occur.
Wolfgang J. Baumann, Helmut K. Mangold
doaj   +1 more source

One-Pot Iridium Catalyzed C–H Borylation/Sonogashira Cross-Coupling: Access to Borylated Aryl Alkynes

open access: yesMolecules, 2020
Borylated aryl alkynes have been synthesized via one-pot iridium catalyzed C–H borylation (CHB)/Sonogashira cross-coupling of aryl bromides. Direct borylation of aryl alkynes encountered problems related to the reactivity of the alkyne under CHB ...
Ghayoor A. Chotana   +4 more
doaj   +1 more source

Dicyclohexylammonium bromide [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2008
En el compuesto del título, C(12)H(24)N(+)·Br(-), ambos anillos de ciclohexano adoptan la conformación de silla habitual. El catión y el anión están unidos por enlaces de hidrógeno N-H Br en una cadena lineal que se extiende a lo largo del eje c.
Kong Mun Lo, Seik Weng Ng
openaire   +3 more sources

Palladium-catalyzed acetylation of arenes. [PDF]

open access: yes, 2014
A simple method for the preparation of aryl methyl ketones is reported. The transformation involves the Pd-catalyzed coupling of an acyl anion equivalent, acetyltrimethylsilane, with aryl bromides to afford the corresponding acetylated arenes in ...
Garg, Neil K, Ramgren, Stephen D
core   +1 more source

Transport du linuron, de l'imidaclopride et du bromure au travers de colonnes de sol et de lysimètres drainants [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2000
Transport of linuron, imidacloprid and bromide along soil columns and field lysimeters. Undisturbed soil columns (65 cm high x 15 cm diam.) were used in a greenhouse experiment to study the effect of rainfall and mode of application on leaching pattern ...
Ndongo B., Leroux G.D., Fortin J.
doaj  

Stereoselective dibromination of diphenylphosphorylallenes with N-bromosuccinimide under mild conditions

open access: yesJournal of Saudi Chemical Society, 2018
A highly stereoselective dibromination of diphenylphosphorylallenes using N-bromosuccinimide (NBS) as bromine reagent is developed, wherein a variety of 2-bromo-substituted allyl bromides were obtained in good to excellent yields under mild reaction ...
Qiang Wang   +3 more
doaj   +1 more source

Bulky-yet-flexible carbene ligands and their use in palladium cross-coupling [PDF]

open access: yes, 2019
In recent years, several classes of new N-heterocyclic carbene (NHC) ligands were developed around the concept of flexible steric bulk. The steric hindrance of these ligands brings stability to the active species, while ligand flexibility still allows ...
Cazin, Catherine   +2 more
core   +1 more source

Acneiform dermatoses [PDF]

open access: yes, 1998
Acneiform dermatoses are follicular eruptions. The initial lesion is inflammatory, usually a papule or pustule. Comedones are later secondary lesions, a sequel to encapsulation and healing of the primary abscess.
Jansen, Thomas, Plewig, G.
core   +1 more source

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