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Chemoselective condensationof beta-naphthol, dimethyl malonate, andaromatic aldehydes promoted by niobium pentachloride
(Taylor &francis Inc, 2015-01-01)
A multicomponent reaction of β-naphthol, dimethyl malonate, and aromatic aldehydes in the presence of NbCl5 as promoter is described. Under similar conditions, aromatic aldehydes with different substituents exhibited ...
An efficient and mild access to N-acetyl protected purine nucleosides based on a chemoselective enzymatic hydrolysis
(Elsevier, 2013-03)
N-Monoacetylated derivatives of ribo- (adenosine, guanosine) and 2′-deoxyribonucleosides (2′-deoxyadenosine and 2′-deoxyguanosine), useful as oligonucleotide building blocks, were obtained in 88–100% by enzymatic chemoselective ...
Alternatives to free molecular halogens as chemoselective reactants: Catalysis of organic reactions with reusable complexes of halogen metal salts
(Int Union Pure Applied Chemistry, 2012-02-06)
Organometallic complexes of halogen metallic salts have been used as catalysts in different organic reactions, mainly the oxidation of organic compounds. Their use has not only allowed the reduction of the amounts of ...
Chemoselective enzymatic preparation of N-hydroxyalkylacrylamides, monomers for hydrophilic polymer matrices
(Elsevier Science, 2006-05)
A lipase-catalyzed procedure is described for the preparation of N-hydroxyalkylacrylamides useful among a number of electrophoretical applications such as capillary and gel electrophoresis. The N-hydroxyalkylacrylamides ...
Synthesis of Silylbiaryl Triflates by Chemoselective Suzuki Reaction
(Georg Thieme Verlag Kg, 2017)
A modular approach for the synthesis of functionalized silylbiaryl triflates has been developed. Iodinated silylaryl triflates were prepared via a gram-scale diiodination reaction, followed by a one-flask transformation, ...
Chemoselective condensationof beta-naphthol, dimethyl malonate, andaromatic aldehydes promoted by niobium pentachloride
(Taylor &francis Inc, 2015-01-01)
A multicomponent reaction of β-naphthol, dimethyl malonate, and aromatic aldehydes in the presence of NbCl5 as promoter is described. Under similar conditions, aromatic aldehydes with different substituents exhibited ...
Preparation and characterization of a supported system of Ni2P/Ni12P5 nanoparticles and their use as the active phase in chemoselective hydrogenation of acetophenone
(IOP Publishing, 2018-03-26)
Ni2P/Ni12P5 nanoparticles were obtained by thermal decomposition of nickel organometallic salt at low temperature. The use of different characterization techniques allowed us to determine that this process produced a mixture ...