Results 41 to 50 of about 47,767 (156)

Synthesis and Spectral Characterization of Some New Substituted Bis-spirocyclohexanones Derived from Acetone

Science Journal of University of Zakho, 2018
Diarylidene acetones (DAA) (1-5) had been prepared by the condensation of acetone with substituted benzaldehydes via Claisen-Schmidt reaction, DAA’s brought to condense with anthrone to afford the title compounds (6-10) through Michael addition.
Mohammed S. Hussein, Abdul Wahab J. Al-Hamdany, Rana A. Saeed   +2 more
doaj   +1 more source

Synthesis, characterization and antimicrobial activity of fluoro-containing aroylhydrazones

Acta Chimica Slovenica
2-Fluorobenzohydrazide reacted with various benzaldehydes afforded five new aroylhydrazones, which were characterized by elemental analysis, IR, UV-Vis and 1H NMR spectroscopy.
Lei Shi, Xiaoniu Hong, Xinyue Zhang, Fu-Ming Wang, Feng Guo   +4 more
doaj   +1 more source

Thermochemistry of di-substituted benzenes: nitro- and dimethylamino benzaldehydes

, 2020
© 2020 Elsevier Ltd Standard molar enthalpies of vaporization/sublimation of nitro and amino-substituted benzaldehydes were obtained from the temperature dependence of vapour pressure measured by the transpiration method.
Verevkin S., Samatov A., Siewert R., Nagrimanov R.   +3 more
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Asymmetric Transfer Hydrogenation of Benzaldehydes

, 2016
A combined system of RuCl[(R,R)-YCH(C6H5)CH(C6H5)NH2](η6-arene) (Y = NSO2C6H4-4-CH3 or O) and t-C4H9OK catalyzes the asymmetric transfer hydrogenation of various benzaldehyde-1-d derivatives with 2-propanol to yield (R)-benzyl-1-d alcohols in 95−99% ee ...
Ryoji Noyori (2005420), Issaku Yamada (1323963)   +1 more
core   +1 more source

New Conjugated Benzothiazole-N-oxides: Synthesis and Biological Activity

Molecules, 2009
Eleven new 2-styrylbenzothiazole-N-oxides have been prepared by aldol – type condensation reactions between 2-methylbenzothiazole–N-oxide and para-substituted benzaldehydes.
Pavlína Foltínová, Peter Magdolen, Pavol Zahradník, Peter Gajdoš   +3 more
doaj   +1 more source

Fragmentations of protonated benzaldehydes via intermediate ion/molecule complexes

, 1986
Filges U, Grützmacher H-F. Fragmentations of protonated benzaldehydes via intermediate ion/molecule complexes. Organic Mass Spectrometry.
U. Filges, Grützmacher, Hans-Friedrich, Filges, Ulrich, Hans‐Fr. Grützmacher   +3 more
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Synthesis of Some Aryl Chalcones Using Silica-Sulphuric Acid Reagent under Solvent Free Conditions

E-Journal of Chemistry, 2007
There are two series of α, β-unsaturated ketones derived form Biphenyl and 9H-Fluorenyl, and ketones with various substituted benzaldehydes under solvent free conditions using silica-sulphuric acid as a reagent in an oven. The catalyst silica is reusable
G. Thirunarayanan, G. Vanangamudi
doaj   +1 more source

Unnatural Thiamine Radical Enzymes for Photobiocatalytic Asymmetric Alkylation of Benzaldehydes and a-Ketoacids

Despite substantial progress made toward elucidating the elegant natural radical enzymology with thiamine pyrophosphate (TPP)-dependent pyruvate:ferredoxin oxidoreductases (PFORs) and pyruvate oxidases (POXs), repurposing naturally occurring two electron
Xin, Liu, Heyu, Chen, Yang, Yang, Sheng, Xu   +3 more
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Synthesis of functionally substituted benzaldehydes [PDF]

, 2017
© 2017, Pleiades Publishing, Ltd. A new method of synthesis of functionally substituted benzaldehydes by catalytic debromometoxylation of dibromomethylarenes with benzaldehyde dimethyl acetal has been suggested. Anhydrous zinc chloride has been used as a
Ibragimov S., Khairullin R., Gazizov M., Karimova R., Ivanova S., Gazizova K., Antipin I.   +6 more
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Rate and equilibrium constants for the addition of N-heterocyclic carbenes into benzaldehydes : a remarkable 2-substituent effect

, 2015
We thank the Royal Society for a University Research Fellowship (ADS), the EPSRC (CJC and RM) grant number EP/G013268/1 and the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) ERC grant agreement no 279850
Collett, Christopher John, Taylor, James E., Massey, Richard S, Collett, C.J., Taylor, James Edward, Massey, R.S., Maguire, Oliver R, Smith, A.D., Collett, Christopher J., Taylor, J.E., Massey, Richard S., Smith, Andrew D., Smith, Andrewv D., O'Donoghue, Ann Marie C., O'Donoghue, A.C., O'Donoghue, AnnMarie C, Maguire, Oliver R.; id_orcid, Maguire, O.R.   +17 more
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