Results 31 to 40 of about 88,910 (336)
Biocatalytic self-assembly cascades [PDF]
, 2017 The properties of supramolecular materials are dictated by both kinetic and thermodynamic aspects, providing opportunities to dynamically regulate morphology and function.
Abul-Haija +46 more
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Atropisomerism of Aromatic Carbamates
Chemistry – A European Journal, 2010 Abstractortho‐Haloarylcarbamates like 1–4 show a high rotational barrier about the Naryl bond of up to 91.6 kJ mol−1 as found for 1, which was determined by 2D exchange NMR spectroscopy (EXSY). It was further demonstrated that the height of the barrier not only depends on the substituents at the axis of chirality, but is also influenced by electronic ...
Tietze, Lutz Friedjan +5 more
openaire +3 more sources
Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023 Carboxylesterase from edible legume seeds, including black gram bean (Vigna mungo (L.) Hepper), mung bean (Vigna radiata (L.) Wilczek) and red bean (Vigna umbellata (Thunb.) Ohwi and Ohashi) has been partially purified using the ammonium sulphate ...
Chiradet NASUK +2 more
doaj +1 more source
Diastereoselective three-component synthesis of beta-amino carbonyl compounds using diazo compounds, boranes, and acyl imines under catalyst-free conditions [PDF]
, 2014 Diazo compounds, boranes, and acyl imines undergo a three-component Mannich condensation reaction under catalyst-free conditions to give the anti β-amino carbonyl compounds in high diastereoselectivity.
Luan, Yi +4 more
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Carbamate derivatives and sesquiterpenoids from the South China Sea gorgonian Melitodes squamata
Beilstein Journal of Organic Chemistry, 2012 Five carbamate derivatives, obtucarbamates C and D (1, 2), dimethyl ((carbonylbis(azanediyl))bis(2-methyl-5,1-phenylene))dicarbamate (3), obtucarbamates A and B (4, 5), and four aromadendrane-type sesquiterpenoids, (+)-4β-N-methenetauryl-10β-methoxy-1β ...
Li-Si Huang +4 more
doaj +1 more source
Carbamate-Based Bolaamphiphile as Low-Molecular-Weight Hydrogelators
Gels, 2016 A new bolaamphiphile analog featuring carbamate moieties was synthesized in six steps starting from thymidine. The amphiphile structure exhibits nucleoside-sugar polar heads attached to a hydrophobic spacer via carbamate (urethane) functions.
Laurent Latxague +5 more
doaj +1 more source
Inducible pesticide tolerance in Daphnia pulex influenced by resource availability
Ecology and Evolution, 2019 Pesticides are a ubiquitous contaminant in aquatic ecosystems. Despite the relative sensitivity of aquatic species to pesticides, growing evidence suggests that populations can respond to pesticides by evolving higher baseline tolerance or inducing a ...
Vanessa P. Wuerthner +10 more
doaj +1 more source
Protecting-Group-Free Synthesis of 2-Deoxy-Aza-Sugars
Molecules, 2009 The protecting-group-free asymmetric synthesis of 1,2,4-trideoxy-1,4-imino-L-xylitol is readily achieved in five steps from 2-deoxy-D-ribose and with an overall yield of 48%.
Mattie Simon Maria Timmer +3 more
doaj +1 more source
QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
Química Nova, 2022 This work reports a multivariate calibration partial least square regression (PLS) model to quantify the liquid-phase concentrations of 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ), bicarbonate, PZ monocarbamate, and PZ dicarbamate during the ...
Armando Zanone +2 more
doaj +1 more source
Urethane or Carbamate of Ethyl [PDF]
The Journal of Nervous and Mental Disease, 1886 n ...
openaire +2 more sources