Results 21 to 30 of about 18,744 (300)
The Allylic Alkylation of Ketone Enolates
ChemistryOpen, 2020 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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Molecules, 2021 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
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Synthesis of Bicyclic Isoxazoles and Isoxazolines via Intramolecular Nitrile Oxide Cycloaddition
Molecules, 2015 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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Merging domino and redox chemistry: Stereoselective access to di- and trisubstituted β,γ-unsaturated acids and esters [PDF]
, 2016 Merging is the game! The coupling of a domino reaction and an internal neutral redox reaction constitutes an excellent manifold for the stereoselective synthesis of di- and trisubstituted olefins featuring a malonate unit, an ester, or a free carboxylic ...
Cotos, Leandro +3 more
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Beilstein Journal of Organic Chemistry, 2012 4-Cyano-1,1'-biphenyl derivatives bearing ω-hydroxyalkyl substituents were reacted with methyl 3-chloro-3-oxopropionate or cyanoacetic acid, giving liquid-crystalline linear malonates and cyanoacetates. These compounds formed monotropic nematic phases at
Katharina C. Kress +4 more
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Para-quinone methide: A new player in asymmetric catalysis [PDF]
, 2015 This is the accepted version of the following article: Parra, A. and Tortosa, M. (2015), para-Quinone Methide: a New Player in Asymmetric Catalysis.
Parra, Alejandro +1 more
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Enantioselective Synthesis of Succinimides by Michael Addition of 1,3-Dicarbonyl Compounds to Maleimides Catalyzed by a Chiral Bis(2-aminobenzimidazole) Organocatalyst [PDF]
, 2012 A wide variety of chiral succinimides have been prepared in high yields and enantioselectivities by asymmetric conjugate addition of 1,3-dicarbonyl compounds to maleimides under very mild reaction conditions using a bifunctional benzimidazole-derived ...
Alonso, Diego A. +3 more
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Reductive Arylation of Arylidene Malonates Using Photoredox Catalysis.
ACS Catalysis, 2019 A strategy with arylidene malonates provides access to β-umpolung single-electron species. Reported here is the utilization of these operators in intermolecular radical-radical arylations, while avoiding conjugate addition/dimerization reactivity that is
Rick C. Betori, K. Scheidt
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Molecules, 2010 A series of new C2-symmetric fluoren-9-ylidene malonate-derived bis(oxazoline) ligands were synthesized from fluoren-9-ylidene malonate and enantiomerically pure amino alcohols via a convenient route.
Lei Liu +3 more
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