Results 81 to 90 of about 46,706 (268)
Angewandte Chemie International Edition, Accepted Article.This study presents a phosgene‐ and isocyanate‐free route for the synthesis of polyurethanes using (R)‐limonene as a bio‐based starting material. The synthesis of the cyclic limonene‐based carbamate monomer LU is achieved in high yields using dimethyl carbonate as a sustainable, less hazardous phosgene surrogate and is verified by NMR, SC‐XRD, ESI‐MS ...
Jonas Futter +4 more
wiley +1 more source
Учёные записки Казанского университета: Серия Естественные наукиA series of optically active 5(S)-(l-bornyloxy)- and 5(S)-(l-menthyloxy)-2(5H)-furanones with an arylthio group at the C(4) position of the γ-lactone ring was synthesized and studied for its oxidation reactions with various reagents. Novel 2(5H)-furanone
A. M. Khabibrakhmanova +7 more
doaj +1 more source
Ruthenium Catalyzed Ortho‐Arylation Reaction of Benzoic Acids with Arylthianthrenium Salts
Angewandte Chemie International Edition, EarlyView.A catalytic ortho‐arylation method has been developed to convert arylthianthrenium salts into carboxylate‐functionalized biaryls, which can be removed in situ or used for further derivatization. This reaction is broadly applicable to (hetero)arenecarboxylic acids, with excellent functional group compatibility and orthogonality to cross‐couplings ...
Kaiping Wang +9 more
wiley +1 more source
Química Nova, 2013 The chemical investigation of hexane and ethanol extracts from the aerial parts of Vernonia scorpioides resulted in the isolation and characterization of a new polyacetylene lactone, rel-4-dihydro-4β-hydroxy-5a-octa-2,4,6-triynyl-furan-2-(5H)-one ...
Adalva Lopes Machado +8 more
doaj
Food Technology and Biotechnology, 2017 This study investigates the effect of ageing on the qualitative and quantitative composition of plum distillate in contact with oak wood chips. Maturation was performed with lightly toasted French oak (Quercus sessiflora and Quercus robur) chips or oak ...
Maria Balcerek +4 more
doaj +1 more source
Studies on the biosynthesis of cholesterol. 5. Biosynthesis of squalene from
, 1958 J. W. Cornforth +3 more
openalex +1 more source
Fe-MoS$_2$ nanoenzyme with photothermal enhanced enzyme activity for glucose colorimetric detection [PDF]
arXivWith the development of nanotechnology, it has been discovered that some nanomaterials have the activity of mimicking enzymes. This type of inorganic nanomaterial with characteristics similar to natural enzymes is called nanoenzyme. Compared with natural enzymes, nanoenzymes have advantages such as low deactivation, good stability, low production and ...
arxiv
Biodegradable Polyesteramide Films for Pervaporative Dehydration of Isopropanol–Water
Journal of Applied Polymer Science, EarlyView.ABSTRACT Polyesteramides are biodegradable polymers possessing good mechanical properties with potential applicability in membrane separations. In this work, polymer films from ε‐caprolactam and ε‐caprolactone‐based polyesteramides were prepared at a ratio of monomer units set so that the resulting copolymer had a low crystalline phase content.
Marie Kolářová +3 more
wiley +1 more source
Chemistry – An Asian Journal, EarlyView.Experimental and computational methods reveal unique diastereoconvergency in radical‐based catalytic aerobic carbooxygenation of 2‐fluoro‐3‐aryl‐allyl nitroacetates. Both (E)‐ and (Z)‐isomers are converted into α,α,β,β‐tetrasubstituted γ‐lactones with high syn‐selectivity, even without E/Z isomerization of the alkene unit.
Yanzong Lyu +4 more
wiley +1 more source