Results 1 to 10 of about 3,977 (186)

Diastereoselective synthesis of highly substituted cyclohexanones and tetrahydrochromene-4-ones via conjugate addition of curcumins to arylidenemalonates [PDF]

open access: yesBeilstein Journal of Organic Chemistry
A cascade inter–intramolecular double Michael strategy for the synthesis of highly functionalized cyclohexanones from curcumins and arylidenemalonates is reported. This strategy works in the presence of aqueous KOH using TBAB as a suitable phase transfer
Deepa Nair   +3 more
doaj   +2 more sources

Ni-catalysed acceptorless dehydrogenative aromatisation of cyclohexanones enabled by concerted catalysis specific to supported nanoparticles [PDF]

open access: yesNature Communications
The dehydrogenative aromatisation of cyclohexanone derivatives has had a transformative influence on the synthesis of aromatic compounds because functional groups can be easily introduced at desired positions via classic organic reactions without being ...
Takehiro Matsuyama   +3 more
doaj   +2 more sources

MOF-808 as a Highly Active Catalyst for the Diastereoselective Reduction of Substituted Cyclohexanones [PDF]

open access: yesMolecules, 2022
Zr-containing MOF-808 is an excellent heterogeneous catalyst for the diastereoselective Meerwein–Ponndorf–Verley reduction of substituted cyclohexanones.
Hans Hilmar Mautschke   +1 more
doaj   +2 more sources

Synthesis and Characterization of Multiple Functionalized Cyclohexanone Using Diels–Alder Reaction of α-Nitrocinnamate

open access: yesReactions, 2022
A systematic study of the Diels–Alder reaction of α-nitrocinnamate was performed. The reaction of p-substituted α-nitrocinnamate with 2,3-dimethyl-1,3-butadienes smoothly proceeded regardless of the p-substituent, which was either an electron-donating or
Takumi Hamada   +2 more
doaj   +1 more source

Radical-mediated C-C cleavage of unstrained cycloketones and DFT study for unusual regioselectivity

open access: yesNature Communications, 2020
C-C bond scission of unstrained cycloketones with high regioselectivity is a challenging synthetic task. Here, the authors show a facile C-C cleavage of cyclohexanones and cyclopentanones with unusual selectivity under mild conditions with the aid of an ...
Mingyang Wang   +5 more
doaj   +1 more source

Influence of diluent alkyl substitution on the extraction of Am(III) and Eu(III) by a 6,6’-bis(1,2,4-triazin-3-yl)-2,2’-bipyridine ligand dissolved in alkylated cyclohexanone Diluents [PDF]

open access: yes, 2012
Several alkylated cyclohexanones were investigated as potential diluents for the selective extraction of Am(III) from Eu(III) from nitric acid solutions by the CyMe4-BTBP ligand.
Distler, Petr   +5 more
core   +1 more source

Stereoselective (3+3)-Carbocyclization of Enamines with Nitroallylating Reagents

open access: yesCHIMIA, 1985
The enamines from open-chain (3-pentanone) and cyclic (cyclopentanone, cyclohexanones, β-tetralone) ketones and the amines pyrrolidine, morpholine or (S)-2-methoxymethyl-pyrrolidine combine with E-3-phenyl-2-nitro-2-propen-1-yl or E-2-nitro-2-hepten-1 ...
Dieter Seebach   +4 more
doaj   +1 more source

A Highly Efficient Method for Synthesis of Bisarylmethylidenes of Cyclic Ketones in [BMIm]Cl/NaOH System as New and Recyclable Catalyst [PDF]

open access: yes, 2014
An ionic liquid 1-Butyl-3-methylimidazoliumchloride[BMIm]Cl/sodium hydroxide system, was employed as a catalyst for the fast and one-pot crossed aldol-condensation of various aromatic aldehydes and cyclic ketones, to produce a variety of substituted α,α'-
Javad Eslami   +2 more
core   +1 more source

One-pot and metal-free synthesis of 3-arylated-4-nitrophenols via polyfunctionalized cyclohexanones from β-nitrostyrenes

open access: yesBeilstein Journal of Organic Chemistry, 2020
β-Nitrostyrenes underwent a Diels–Alder reaction with Danishefsky’s diene to afford cyclohexenes together with the corresponding hydrolyzed products, 3-arylated-5-methoxy-4-nitrocyclohexanones.
Haruyasu Asahara   +2 more
doaj   +1 more source

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