Results 21 to 30 of about 449,894 (327)
Synthesis method of asymmetric gold particles. [PDF]
, 2017 Asymmetric particles can exhibit unique properties. However, reported synthesis methods for asymmetric particles hinder their application because these methods have a limited scale and lack the ability to afford particles of varied shapes.
Hahm, Eunil +3 more
core +1 more source
Asymmetric synthesis of (−)-naltrexone
Chemical Science, 2019 The asymmetric synthesis of (−)-naltrexone was achieved by a Rh(i)-catalyzed C–H alkenylation and torquoselective electrocyclization cascade and late-stage C–H hydroxylation.
Sun Dongbang +2 more
openaire +3 more sources
In Vivo Nanodetoxication for Acute Uranium Exposure
Molecules, 2015 Accidental exposure to uranium is a matter of concern, as U(VI) is nephrotoxic in both human and animal models, and its toxicity is associated to chemical toxicity instead of radioactivity. We synthesized different PAMAM G4 and G5 derivatives in order to
Luis Guzmán +4 more
doaj +1 more source
Stereoselective synthesis of hydroxylated 3-aminoazepanes using a multi-bond forming, three-step tandem process [PDF]
, 2012 A multi-bond forming, three-step tandem process involving a palladium(II)-catalysed Overman rearrangement and a ring closing metathesis reaction has been utilised for the efficient synthesis of a 2,3,6,7-tetrahydro-3-amidoazepine.
Ahmad +63 more
core +1 more source
Asymmetric synthesis of (−)-(S,S)-homaline
Tetrahedron Letters, 2012 The asymmetric synthesis of (−)-(S,S)-homaline was achieved in 8 steps from commercially available starting materials using the diastereoselective conjugate addition of the novel lithium amide reagent lithium (R)-N-(3-chloropropyl)-N-(α-methyl-p-methoxybenzyl)amide to methyl cinnamate to install the correct stereochemistry.
Davies, S +4 more
openaire +3 more sources
Molecules, 2015 Volatile phenols, such as 4-ethyphenol (4-EP) and 4-ethylguaiacol (4-EG), are responsible for the “Brett character” found in wines contaminated with Brettanomyces yeast (i.e., barnyard, animal, spicy and smoky aromas).
Verónica Carrasco-Sánchez +4 more
doaj +1 more source
Asymmetric Hydrogenation in Water by a Rhodium Complex of Sulfonated 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl (binap) [PDF]
, 1993 The synthesis of sulfonated 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (binap) is reported; a rhodium complex of this ligand is the first to perform asymmetric hydrogenation in neat water with optical yields as high as those obtained in nonaqueous ...
Davis, Mark E., Wan, Kam-to
core +1 more source
Asymmetric synthesis of (−)-codonopsinine
Tetrahedron Letters, 2011 Abstract The asymmetric synthesis of (−)-codonopsinine was achieved in 7 steps (from commercially available tert-butyl crotonate) in 5% overall yield and >99:1 dr. The key step in this synthesis involved ring-closing iodoamination of a functionalised homoallylic amine, which occurred with concomitant N-debenzylation, to give a 3-iodopyrrolidine that ...
Davies, S +4 more
openaire +2 more sources
Concise Synthesis of (+)-allo-Kainic Acid via MgI2-Mediated Tandem Aziridine Ring Opening-Formal [3+2] Cycloaddition [PDF]
, 2013 3-Methyl vinyl aziridine undergoes a mild MgI2-promoted S(N)2' ring opening and concomitant cyclization with fumarate Michael acceptors to give trisubstituted pyrrolidines. The process is efficient and highly diastereoselective. This methodology has been
Aggarwal, Varinder K. +3 more
core +1 more source