Results 31 to 40 of about 1,728 (205)

Divers modes d'oxygénation des composés hydroxylés. Deuxième partie: cas des phénols et composés apparentés. Various Ways of Oxygenation Hydroxyl Compounds.Part Two: Case of Phenols and Related Compounds

Oil & Gas Science and Technology, 2006
Cet article examine les divers modes d'oxygénation des phénols, naphtols, anthranols et flavonols en mettant en évidence, dans la mesure du possible, la formation des peroxydes intermédiaires.Ainsi, en plus des éléments fournis dans d'autres publications
Karnojitzky V. J.
doaj   +1 more source

Pd‐Catalyzed Asymmetric Dearomative Heck/Tsuji‐Trost Difunctionalization of Naphthalenes

Advanced Science, EarlyView.
We have developed a palladium‐catalyzed asymmetric dearomative Heck/Tsuji‐Trost 1,4‐difunctionalization reaction of naphthalenes, affording 4‐aminospirocyclohexene oxindole products bearing two remote chiral centers. Through the effect of the newly designed chiral sulfinamide phosphine ligand with large steric hindrance, side reactions are inhibited ...
Long‐Ling Ma, Bing Xu, Junliang Zhang, Zhan‐Ming Zhang   +3 more
wiley   +1 more source

Trichloroisocyanuric acid, a New and Efficient Catalyst for the Synthesis of 2′- Aminobenzothiazolo-arylmethyl-2-naphthols

E-Journal of Chemistry, 2012
An efficient one-pot synthesis of 2′-aminobenzothiazolo-arylmethyl-2-naphthols is described. This involves the three-component reaction of β-naphthol, aromatic aldehydes and 2-aminobenzothiazole in the presence of a catalytic amount of ...
Limin Yang
doaj   +1 more source

Three component, one-pot synthesis of amidoalkyl naphthols using polyphosphate ester under solvent-free conditions

Journal of Saudi Chemical Society, 2014
Amidoalkyl naphthols are synthesized via a simple, one-pot, three-component reaction between aldehydes, 2-naphthol and amides or ureas using polyphosphate ester (PPE) as a reaction mediator under solvent-free conditions in good to excellent yields.
Hassan Moghanian, Sattar Ebrahimi
doaj   +1 more source

Comparison between Electrooxidation of 1-Naphthol and 2-Naphthol in Different Non-Aqueous Solvents and Suppression of Layer Growth of Polymers

Surfaces
The two naphthol isomers were investigated in different organic solvents by taking cyclic voltammograms, and fouling took place on a platinum electrode surface, except for dimethyl sulfoxide and dimethyl formamide. Studies in allyl alcohol rarely used in
László Kiss, Péter Szabó, Sándor Kunsági-Máté   +2 more
doaj   +1 more source

Synthesis and application of novel heterocyclic dyes based on 11-amino-13H-acenaphtho[1,2-e]pyridazino[3,2-b]-quinazoline-13-one [PDF]

Journal of the Serbian Chemical Society, 2002
A new fused heterocyclic compound, 11-amino-13H-acenaphtho[1,2-e]pyridazino [3,2-b]quinazolin-13-one was synthesized and used to prepare a novel series of heterocyclic mono azo dyes by coupling with various naphthols.
Patel Vijay J., Patel Manish P., Patel Ranjan G.   +2 more
doaj   +1 more source

Arylglycine-derivative synthesis via oxidative sp3 C–H functionalization of α-amino esters

Beilstein Journal of Organic Chemistry, 2012
An efficient method for the synthesis of arylglycine derivatives is described. The oxidative coupling reactions of naphthols and phenols with α-amino esters proceeded smoothly in the presence of meta-chloroperoxybenzoic acid as an oxidant under ambient ...
Zhanwei Xu, Xiaoqiang Yu, Xiujuan Feng, Ming Bao   +3 more
doaj   +1 more source

Mechanochemical reaction of ninhydrin with aromatics, enols and amines: Synthesis, crystal structure and supramolecular self-assembly of cyclic and acyclic adducts

Results in Chemistry, 2023
Ninhydrin and related indanone scaffolds are employed as effective synthon in organic and bioorganic chemistry. In the present work, the reactivity of ninhydrin is exploited to synthesize various cyclic and acyclic compounds using mortar and pestle ...
Suven Das, Purak Das, Suvendu Maity, Prasanta Ghosh, Arpita Dutta   +4 more
doaj   +1 more source

Multicomponent, Solvent-Free Synthesis of 1-Amidoalkyl-2-naphthols in the Presence of H3+xPMo12-x Vx O40 Heteropolyacids as Recyclable and Green Catalysts

E-Journal of Chemistry, 2011
A rapid and efficient one-pot method for the synthesis of 1-amidoalkyl-2-naphthols has been developed in the presence of mixed-addenda vanadium(V)-substituted polyoxomolybdates including: H3+xPMo12-xVxO40 (x=1-3) heteropolyacids (HPAs) as recyclable ...
Fatemeh F. Bamoharram, Majid M. Heravi, Mina Roshani, Mohammad J. Sane Charkhi   +3 more
doaj   +1 more source

K₂CO₃-Promoted oxy-Michael Addition/Cyclization of α,β-Unsaturated Carbonyl Compounds with Naphthols: Synthesis of Naphthopyrans

Molecules, 2023
A potassium carbonate promoted tandem oxy-Michael addition/cyclization of α,β-unsaturated carbonyl compounds with naphthol derivatives for the synthesis of 2-substituted naphthopyrans was developed.
Shan-Shan Li, Li-Li Zhao, Min Pan, Na Feng, Jin-Bao Peng, Ai-Jun Ma   +5 more
doaj   +1 more source