Results 11 to 20 of about 2,777 (221)
Isothiourea-Catalyzed Enantioselective Michael Addition of Malonates to α,β-Unsaturated Aryl Esters [PDF]
An enantioselective Michael addition of malonates to α,β-unsaturated para-nitrophenyl esters was achieved using the Lewis basic isothiourea HyperBTM, giving excellent levels of product enantioselectivity (up to >99:1 enantiomeric ratio) in good yields ...
Amy A. Watts (12723830) +6 more
core +3 more sources
Melaminium hydrogen malonate [PDF]
The melaminium (2,4,6-triamino-1,3,5-triazin-1-ium) cation in the title compound, C3H7N6+·C3H3O4−, is essentially planar, with a r.m.s. deviation of the non-H atoms of 0.0085 Å. Extensive hydrogen bonding of the types N—H...N and N—H...O between cations and cations and between cations and hydrogen malonate (2-carboxyethanoate) anions leads to the ...
Barbara Froschauer, Matthias Weil
openaire +3 more sources
Effect of Microwaves in the Chiral Switching Asymmetric Michael Reaction
Highly enantioselective Michael reactions of malonates with cyclic enones are achieved in remarkably less time under microwave irradiation using newly developed heterobimetallic catalysts.
S. Velmathi, S. Narasimhan
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This paper presents the discovery and development of antifungal agents against Fusarium oxysporum (Fox), a devastating plant pathogen. Diethyl 2-((arylamino)methylene)malonates (DAMMs) were formed as side-products during the synthesis of polysubstituted ...
Willy-Fernando Cely-Veloza +2 more
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The Allylic Alkylation of Ketone Enolates
The palladium‐catalyzed allylic alkylation of non‐stabilized ketone enolates was thought for a long time to be not as efficient as the analogous reactions of stabilized enolates, e. g. of malonates and β‐ketoesters.
Dr. Lukas Junk, Prof. Dr. Uli Kazmaier
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Probing the Binding Requirements of Modified Nucleosides with the DNA Nuclease SNM1A
SNM1A is a nuclease that is implicated in DNA interstrand crosslink repair and, as such, its inhibition is of interest for overcoming resistance to chemotherapeutic crosslinking agents.
Eva-Maria Dürr, Joanna F. McGouran
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A new highly efficient three-component reaction of alkyl acrylate, aldehyde and dialkyl malonate using ethyl diphenylphosphine as organocatalyst has been described.
Utpal Das +7 more
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Electrochemical Perspective on Hematite–Malonate Interactions
Organic matter (OM) interactions with minerals are essential in OM preservation against decomposition in the environment. Here, by combining potentiometric and electrophoretic measurements, we probed the mode of coordination and the role of pH-dependent ...
Karolina Kędra +6 more
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Synthesis of Bicyclic Isoxazoles and Isoxazolines via Intramolecular Nitrile Oxide Cycloaddition
An efficient and straight forward procedure for the syntheses of bicyclic isoxazole/isoxazoline derivatives from the corresponding dimethyl-2-(2-nitro-1-aryl/alkyl)-2-(prop-2-yn-1yl)malonates or dimethyl 2-allyl-2-(2-nitro-1-aryl/alkyl ethyl)malonate is ...
Wen-Chang Chen +8 more
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Phospha-Michael addition, which is the addition reaction of a phosphorus-based nucleophile to an acceptor-substituted unsaturated bond, certainly represents one of the most versatile and powerful tools for the formation of P-C bonds, since many different
Eskedar Tessema +7 more
doaj +1 more source

