Results 41 to 50 of about 411,311 (295)
Synthesis and conformational studies of chiral macrocyclic [1.1.1]metacyclophanes containing benzofuran rings [PDF]
, 2015 Macrocyclic [1.1.1]metacyclophanes (MCPs) containing benzene and benzofuran rings linked by methylene bridges and which can be viewed as calixarene analogues, have been synthesized by demethylation of [3.3.1]MCP-diones with trimethylsilyl iodide (TMSI ...
Georghiou, Paris E. +7 more
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FEBS Open Bio, EarlyView.KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli +9 more
wiley +1 more source
Structural Elucidation of Hybutimibe
Chinese Journal of Magnetic ResonanceThe structure of hybutimibe was analyzed by ultraviolet absorption spectroscopy, infrared absorption spectroscopy, mass spectrometry, nuclear magnetic resonance (1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC) spectroscopy ...
XU Xiaojie +6 more
doaj +1 more source
Journal of Chemistry, 2021 A simple and mild protocol towards the synthesis of new 1,2,3-triazole compounds derived from acridone has been developed via regiospecific 1,3-dipolar cycloaddition reaction between 10-(prop-2-yn-1-yl)acridone derivatives and aromatic azides using CuI ...
Mohammed Aarjane +3 more
doaj +1 more source
1H-NMR based lipid profiling of Gossypium hirsutum seed oil at different developmental stages
Current Research in Green and Sustainable Chemistry, 2021 1H-NMR spectroscopy is emerging as powerful robust analytical technique in analyzing bio constituents present in plants. It offers non-invasive method for identification and quantification of several Phyto-constitutes in a single step without much pre ...
Nikita J. Kurkuri +3 more
doaj +1 more source
Solvent-Induced 1h Nmr Chemical Shifts of Annulenes
Computational and Theoretical Chemistry, 2023 We investigate the effect of solvent polarity on the 1H NMR chemical shifts of [n]annulenes (n = 12, 18, and 30) using density functional theory and corroborate the computational results with Onsager’s reaction field theory. We observe that there is a complete deshielding of the proton NMR chemical shifts for the outer protons and these shifts depend ...
Swrangsi Goyary +3 more
openaire +1 more source
Synthesis and conformations of [2.n]metacyclophan-1-ene epoxides and their conversion to [n.1]metacyclophanes [PDF]
, 2017 A series of syn- and anti-[2.n]metacyclophan-1-enes have been prepared in good yields by McMurry cyclizations of 1,n-bis(5-tert-butyl-3-formyl-2-methoxyphenyl)alkanes.
Akther, Thamina +7 more
core +1 more source
FEBS Open Bio, EarlyView.We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies +3 more
wiley +1 more source
NMR Characterization of Flavanone Naringenin 7-O-Glycoside Diastereomer
Chinese Journal of Magnetic Resonance, 2017 To discriminate R and S flavanone glycoside using NMR, the mixture of R and S naringenin 7-O-glycoside was first isolated from Gleditsia sinensis. 1H and 13C NMR data of the mixture were recorded with 1H NMR, 13C NMR, 1H-1H COSY, 1H-13C HSQC and 1H-13C ...
SUN Li-juan +5 more
doaj +1 more source
Synthesis and structure of trans-1,2,3- tris(3-thenoyl)cyclopropane [PDF]
, 1994 The title cyclopropane derivative, C18H12O3S3, was synthesized and its structure investigated by single-crystal X-ray diffraction and spectroscopic methods.
Saba, Antonio
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