Results 11 to 20 of about 330,072 (330)
Synthesis and Characterization of Mannich base Derivative from benzotriazole [PDF]
Kirkuk Journal of Science, 2016 This study include prepared number of new Mannich bases derived from equivalent moles p-hydroxybenzaldehyde with equivalent moles from benzotriazole and primary amines in the ethanol as a solvent.
Fariq Salah Ahmed +2 more
doaj +1 more source
Oleic Acid is Not the Only Relevant Mono-Unsaturated Fatty Ester in Olive Oil
Foods, 2020 (1) Background: Extra-virgin olive oil (EVOO) is a precious and universally studied food matrix. Recently, the quantitative chemical composition was investigated by an innovative processing method for the nuclear magnetic resonance (NMR) experiments ...
Archimede Rotondo +5 more
doaj +1 more source
Three component one pot synthesis of some Mannich base from morpholine and primary amines [PDF]
Kirkuk Journal of Science, 2017 This study includes the preparation number of new Mannich bases derived from one mole p-hydroxybenzaldehyde with equivalent moles of morpholine and primary amines in the ethanol as a solvent.
Fariq Salah Ahmed +2 more
doaj +1 more source
Applied Sciences, 2023 Chars obtained from the hydrothermal carbonization (HTC) of agricultural wastes are increasingly being employed as solid biofuels. Their properties are strongly dependent on HTC process parameters.
Lucia Calucci, Claudia Forte
doaj +1 more source
Molecules, 2021 Recently, Bombyx mori silk fibroin (SF) has been shown to be a suitable material for vascular prostheses for small arteries. In this study, we developed a softer SF graft by coating water-dispersed biodegradable polyurethane (PU) based on ...
Takashi Tanaka +5 more
doaj +1 more source
Direct structural identification of carbenium ions and investigation of host-guest interaction in the methanol to olefins reaction obtained by multinuclear NMR correlations [PDF]
, 2017 Probing and determining the intermediates formed during catalytic reactions in heterogeneous catalysis are strong challenges. Using C-13 labelling and two dimensional C-13-C-13 through-bond NMR correlations, we directly reveal the structures of a range ...
Bao, Xinhe +5 more
core +1 more source
3-O-But-2-ynoyl-28-O′-acetylbetulin
Molbank, 2023 The aim of the work was the synthesis of a new 28-acetylbetulin derivative containing an ester group with a carbon–carbon triple bond in the C3 position.
Elwira Chrobak +2 more
doaj +1 more source
Experimental Implementation of Remote State Preparation by Nuclear Magnetic Resonance [PDF]
, 2002 We have experimentally implemented remote state preparation (RSP) of a qubit from a hydrogen to a carbon nucleus in molecules of carbon-13 labeled chloroform $^{13}$CHCl$_{3}$ over interatomic distances using liquid-state nuclear magnetic resonance (NMR)
Bennett +22 more
core +3 more sources
N-[7-Chloro-4-[4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl]quinoline]-acetamide
Molbank, 2021 The 1,2,3-triazole is a well-known biologically active pharmacophore constructed by the copper-catalyzed azide–alkyne cycloaddition. We herein reported the synthesis of 4-amino-7-chloro-based [1,2,3]-triazole hybrids via Cu(I)-catalyzed Huisgen 1,3 ...
Paolo Coghi +3 more
doaj +1 more source
Can we predict reactivity for aromatic nucleophilic substitution with [ 18 F]fluoride ion? [PDF]
, 1993 The correlation between the 13 C‐NMR chemical shift of the aromatic ring carbon bearing the leaving group and the yield of nucleophilic aromatic displacement with no‐carrier‐added [ 18 F]fluoride ion was evaluated.
Chakraborty, Pulak K. +2 more
core +1 more source