Results 41 to 50 of about 37,838,535 (141)
Advanced Science, EarlyView.From passive to active ion transport: π‐conjugated heterocycles reconfigure the hydration environment and microphase morphology of p‐terphenyl‐based anion‐exchange membranes, enabling fast hydroxide transport and high‐performance water electrolysis. ABSTRACT Anion‐exchange membrane water electrolysis (AEMWE) is a promising technology for sustainable ...
Qian Wang +8 more
wiley +1 more source
(S)-3-Bromo-4-diallylamino-5-[(1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy]furan-2(5H)-one
Acta Crystallographica Section E, 2010 The title compound, C20H30BrNO3, was obtained via a tandem asymmetric Michael addition–elimination reaction of 3,4-dibromo-5-(S)-(l-menthyloxy)-2(5H)-furanone and diallylamine in the presence of potassium fluoride.
Yue-He Tan +3 more
doaj +1 more source
N-[(2S)-4-Chloro-2-(l-menthyloxy)-5-oxo-2,5-dihydrofuran-3-yl]-l-valine
Acta Crystallographica Section E, 2009 The title compound, C19H30ClNO5, was obtained by the tandem asymmetric Michael addition–elimination reaction of (5S)-3,4-dichloro-5-(l-menthyloxy)furan-2(5H)-one and l-valine in the presence of potassium hydroxide.
Xiu-Mei Song +3 more
doaj +1 more source
N-{4-Bromo-2-[(S)-menthyloxy]-5-oxo-2,5-dihydro-3-furyl}-l-valine
Acta Crystallographica Section E, 2009 The title compound, C19H30BrNO5, was obtained via a tandem asymmetric Michael addition–elimination reaction of 3,4-dibromo-5-[(S)-l-menthyloxy]furan-2(5H)-one and l-valine in the presence of potassium hydroxide. The molecular structure contains
Xiu-Mei Song +3 more
doaj +1 more source
EFSA Journal, 2023 The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Smoke Concentrate 809045 (SF‐003), for which a renewal application was submitted in accordance with Article 12(1) of ...
EFSA Panel name on Food Additives and Flavourings (FAF) +30 more
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Carbon Energy, EarlyView.An amorphous RhOx‐decorated cobalt‐deficient Co3O4 catalyst is designed for efficient HMF electro‐oxidation to FDCA. This design enables Rh/Co dual sites for enhanced HMF/OH− adsorption thermodynamics while independently ordering interfacial water into a connected hydrogen‐bond network that accelerates proton transfer kinetics, delivering outstanding ...
Dezhao Zhang +10 more
wiley +1 more source
(S)-5-(l-Menthyloxy)-5-[(2R,3R)-2-(l-menthyloxy)-5-oxotetrahydrofuran-3-yl]furan-2(5H)-one
Acta Crystallographica Section E, 2010 In the title compound, C28H44O6, the two five-membered rings form a dihedral angle of 6.7 (1)°. In the crystal structure, weak intermolecular C—H...O hydrogen bonds link molecules into layers parallel to (101).
Bing-Bing Zhang +2 more
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EFSA Journal, 2023 The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product SmokEz Enviro‐23 (SF‐006), for which a renewal application was submitted in accordance with Article 12(1) of Regulation ...
EFSA Panel name on Food Additives and Flavourings (FAF) +29 more
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Carboxylate–Probase Catalyzed Favorskii Reaction
Chemistry – A European Journal, EarlyView.Stronger together: A combination of a carboxylate catalyst and a silylating agent generates a stronger base catalyst for a metal‐free catalytic addition of alkynes to aldehydes and ketones under chemoselective, O‐silylative conditions. The reaction is proposed to proceed via quaternary ammonium (Q+) cation – acetylide anion ion pairs, with chiral ...
Anton Bannykh +4 more
wiley +1 more source
EFSA Journal, 2023 The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Zesti Smoke Code 10 (SF‐002), for which a renewal application was submitted in accordance with Article 12(1) of Regulation
EFSA Panel name on Food Additives and Flavourings (FAF) +29 more
doaj +1 more source