Results 1 to 10 of about 371 (109)
Asymmetric Friedel-Crafts Alkylation of Indole with Chalcones Catalyzed by Chiral Phosphoric Acids
Molecules, 2009 The reaction of indole with chalcones, to give Michael-type adducts, was found to occur with good efficiency (up to 98% yield) and moderate enantioselectivity (up to 52% e.e.) in the presence of a chiral BINOL-based phosphoric acid.
Maria Rosaria Acocella +2 more
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Origin of catalytic activity differences between phosphine and phosphine oxide-based structures in the water-crosslinkable polyalkoxysilane composition [PDF]
Polyolefins Journal, 2021 Organocatalysts have attracted enormous interest in the water-crosslinking reaction in silane-grafted polyolefins (SGPOs) system owing to their simplicity, low toxicity and environmentally benign nature compared to organotin catalysts, which are most ...
Tanaka Shohei, Kenta Adachi
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Membranes, 2022 Gas permeable membranes (GPM) are a promising technology for the capture and recovery of ammonia (NH3). The work presented herein assessed the impact of the capture solution and temperature on NH3 recovery for suspended GPM systems, evaluating at a ...
María Soto-Herranz +3 more
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THE DETERMINATION OF PHOSPHORIC ACID. [PDF]
Journal of the American Chemical Society, 1895 n ...
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Molecules, 2020 Hydrogen-bonded heterocomplexes formed by POOH-containing acids (diphenylphosphoric 1, dimethylphosphoric 2, diphenylphosphinic 3, and dimethylphosphinic 4) are studied by the low-temperature (100 K) 1H-NMR and 31P-NMR using liquefied gases CDF3/CDF2Cl ...
Valeriia V. Mulloyarova +3 more
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Synthesis of Terpineol from Alpha-Pinene Catalyzed by α-Hydroxy Acids
Molecules, 2022 We report the use of five alpha-hydroxy acids (citric, tartaric, mandelic, lactic and glycolic acids) as catalysts in the synthesis of terpineol from alpha-pinene.
Zhong-Lei Meng +5 more
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XLVIII.—The phosphoric acids [PDF]
J. Chem. Soc., Trans., 1911 n ...
Holt, Alfred, Myers, James Eckersley
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European Oral Research, 2020 Purpose This study aimed to evaluate if the contact of calcium hydroxide cements with polyacrylic and phosphoric acids would alter selected microscopic and physical and chemical properties.
Isabela Dantas Torres De Araújo +4 more
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THE PHOSPHORIC ACID IN STARCH. [PDF]
Journal of the American Chemical Society, 1916 n ...
Northrop, John H., Nelson, J. M.
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Frontiers in Dentistry, 2021 Objectives: The aim of the present study was to compare shear bond strength (SBS), adhesive remnant index and enamel cracks in bonding and rebonding of brackets to enamel, conditioned with erbium-doped yttrium aluminium garnet (Er:YAG) laser and ...
Elahe Soltanmohamadi Borujeni +5 more
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