Results 11 to 20 of about 2,480,939 (303)

Functionalized 3D Architected Materials via Thiol-Michael Addition and Two-Photon Lithography [PDF]

open access: yesAdvanced Materials, 2017
Fabrication of functionalized 3D architected materials is achieved by a facile method using functionalized acrylates synthesized via thiol-Michael addition, which are then polymerized using two-photon lithography.
Greer, Julia R.   +3 more
core   +4 more sources

Acetoacetate based thermosets prepared by dual-Michael addition reactions [PDF]

open access: yes, 2019
A novel set of dual-curable multiacetoacetate-multiacrylate-divinyl sulfone ternary materials with versatile and manipulable properties are presented.
Fernández Francos, Xavier   +3 more
core   +2 more sources

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

open access: yesScience 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   +2 more
doaj   +1 more source

Sequential curing of thiol-acetoacetate-acrylate thermosets by latent Michael addition reactions [PDF]

open access: yes, 2017
Thiol-acetoacetate-acrylate ternary dual-curing thermosets were prepared by a sequential process consisting of thiol-Michael addition to acrylates at room temperature followed by Michael addition of acetoacetates to acrylates at moderately elevated ...
Fernández Francos, Xavier   +5 more
core   +2 more sources

A new class of phthalimido-quinones synthesis

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
Four new Michael adducts from the reaction between 1,4-naphthoquinone and 2,3-dibromo-1,4-naphthoquinone with w-amino-N-alkylphthalamide derivatives were presented in this work.
Jeziane S. Alves   +2 more
doaj   +1 more source

Synthesis of novel β-aminocyclobutanecarboxylic acid derivatives by a solvent-free aza-Michael addition and subsequent ring closure [PDF]

open access: yes, 2011
Novel beta-aminocyclobutanecarboxylic acid derivatives were prepared via a sequential solvent-free aza-Michael addition of benzophenone imine across 3-halopropylidenemalonates and base-induced ring closure.
Aitken   +44 more
core   +1 more source

Electrooxidation of Catechols in the Presence of Sulfite: Presentation of a Facile and Green Method for Aromatic Sulfonation

open access: yesInternational Journal of Electrochemical Science, 2007
Electrochemical oxidation of catechols (1a-e) has been studied in the presence of sulfite ion (3) as nucleophile in aqueous solution, using cyclic voltammetry and controlled-potential coulometry. The results indicate the participation of catechols (1a-e)
D. Nematollahi, E. Tammari, H. Karbasi
doaj   +1 more source

Organocatalytic Enantioselective Michael Reaction of Aminomaleimides with Nitroolefins Catalyzed by Takemoto’s Catalyst

open access: yesMolecules, 2022
Known as electrophiles, maleimides are often used as acceptors in Michael additions to produce succinimides. However, reactions with maleimides as nucleophiles for enantioselective functionalization are only rarely performed.
Hongwen Mu   +4 more
doaj   +1 more source

Substrate control in stereoselective lanthionine biosynthesis. [PDF]

open access: yes, 2015
Enzymes are typically highly stereoselective catalysts that enforce a reactive conformation on their native substrates. We report here a rare example in which the substrate controls the stereoselectivity of an enzyme-catalysed Michael-type addition ...
Houk, KN   +3 more
core   +2 more sources

1,4-Dihydro-4-(nitromethyl)-2-phenyl-1-tosylquinoline-3-carbaldehyde

open access: yesMolbank, 2016
An aza-Michael/Michael cascade reaction of 2-((E)-2-nitrovinyl)-N-tosylbenzenamine with 3-phenylpropiolaldehyde catalyzed by pyrrolidine has produced a new compound, 1,4-dihydro-4-(nitromethyl)-2-phenyl-1-tosylquinoline-3-carbaldehyde.
Kwang Min Ko, Sung-Gon Kim
doaj   +1 more source

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