Results 41 to 50 of about 32,899 (265)
Modular polyoxometalate-layered double hydroxides as efficient heterogeneous sulfoxidation and epoxidation catalysts [PDF]
, 2018 Selective sulfoxidation of sulfides and epoxidation of olefins are two types of important organic reactions and the corresponding products of sulfoxides, sulfones and epoxides are widely used as raw materials in industrial processes.
Al-Maksoud +57 more
core +1 more source
Synthesis of Chiral, Enantiopure Allylic Amines by the Julia Olefination of α-Amino Esters
Molecules, 2016 The four-step conversion of a series of N-Boc-protected l-amino acid methyl esters into enantiopure N-Boc allylamines by a modified Julia olefination is described. Key steps include the reaction of a lithiated phenylalkylsulfone with amino esters, giving
Fabio Benedetti +5 more
doaj +1 more source
Simulation Study of Sulfonate Cluster Swelling in Ionomers [PDF]
, 2009 We have performed simulations to study how increasing humidity affects the structure of Nafion-like ionomers under conditions of low sulfonate concentration and low humidity. At the onset of membrane hydration, the clusters split into smaller parts. These subsequently swell, but then maintain constant the number of sulfonates per cluster.
arxiv +1 more source
Stereoisomer libraries: Total synthesis of all 16 stereoisomers of the pine sawfly sex pheromone by a fluorous mixture-synthesis approach [PDF]
, 2004 All 16 stereoisomers of the sex pheromone of pine sawfly (3,7,11-trimethylundecanol propanoate ester) have been synthesized on a 10- to 20-mg scale by a split-parallel fluorous mixture-synthesis approach.
Curran +9 more
core +3 more sources
Beilstein Journal of Organic Chemistry, 2017 A practical method for the selective and controlled oxidation of thioglycosides to corresponding glycosyl sulfoxides and sulfones is reported using urea–hydrogen peroxide (UHP). A wide range of glycosyl sulfoxides are selectively achieved using 1.5 equiv
Adesh Kumar Singh +4 more
doaj +1 more source
Crystal structure of 1,3-diallyl-1,3,3a,4,7,7a-hexahydro-4,7-methano-2-benzothiophene 2,2-dioxide
Acta Crystallographica Section E, 2014 The title compound C15H20O2S, was identified as a product of diallylation of the meso-isomer of the corresponding norbornene sulfone, and it is an achiral compound.
Sambasivarao Kotha, Rama Gunta
doaj +1 more source
Molecules, 2021 Chiral γ-ketothiols, thioacetates, thiobenzoate, disulfides, sulfones, thiosulfonates, and sulfonic acids were obtained from β-pinene for the first time.
Olga M. Lezina +4 more
doaj +1 more source
Molecular Structuring and Percolation Transition in Hydrated Sulfonated Poly(ether ether ketone) Membranes [PDF]
, 2017 The extent of phase separation and water percolation in sulfonated membranes are the key to their performance in fuel cells. Toward this, the effect of hydration on the morphology and transport characteristics of sulfonated poly(ether ether ketone), sPEEK, membrane is investigated using atomistic molecular dynamics (MD) simulation at various hydration ...
arxiv +1 more source