Results 11 to 20 of about 23,580 (267)

Regioselective Radical Arene Amination for the Concise Synthesis of ortho-Phenylenediamines

open access: yesJournal of the American Chemical Society, 2021
The formation of arene C–N bonds directly from C–H bonds is of great importance and there has been rapid recent development of methods for achieving this through radical mechanisms, often involving reactive N-centered radicals.
James E Gillespie   +2 more
semanticscholar   +1 more source

Heterocyclic Synthesis of Crowded Aposafranones: Structure of 1‐Methyl‐8‐dimethylamino‐10‐phenylphenazin‐2‐(10H)one and Related Compounds

open access: yesChemistryOpen, 2023
Oxidative condensation of three p‐phenylenediamines with 3‐hydroxy‐2‐methyl‐N‐(phenylamino)benzene gives new coloured aposafranones. 2‐Methylresorcinol is easy to convert into the asymmetric building block 3‐hydroxy‐2‐methyl‐N‐(phenylamino)benzene with ...
Dr. M. John Plater   +1 more
doaj   +1 more source

Polystyrene-supported pyridinium chloroaluminate ionic liquid as a new heterogeneous Lewis acid catalyst for selective synthesis of benzimidazoles [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
Polystyrene-supported pyridinium chloroaluminate ionic liquid was prepared from the reaction of Merrifield resin with pyridine followed by reaction with aluminium chloride.
Parvanak Boroujeni Kaveh   +2 more
doaj   +1 more source

Research of composition and structure of complex Cd(II) tetrafluoroborates with phenylenediamines

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2016
Borofluoric acid and its various products, for example complex metals tetrafluoroborates, become widely used in electrochemical processes at refinement of metals, when receiving soldering fluxes.
Марина Володимирівна Шестакова   +1 more
doaj   +7 more sources

Electrochemical amination of N,N-dimethylaniline

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2021
The process of indirect cathodic amination of N,N-dimethylaniline using the Ti(IV) – NH2OH system was studied in aqueous solutions of 7–16 M sulfuric acid at 40 ?C.
Yu.A. Lisitsyn
doaj   +1 more source

Sensitization and Clinically Relevant Allergy to Hair Dyes and Clothes from Black Henna Tattoos: Do People Know the Risk? An Uncommon Serious Case and a Review of the Literature

open access: yesCosmetics, 2016
Henna (Lawsonia inermis L.) tattooing has been used in Egypt and India since ancient times. Today this temporary body art is becoming increasingly popular among young people.
Paola A. Moro   +5 more
doaj   +1 more source

LVII.—Benzyl-derivatives of the phenylenediamines [PDF]

open access: yesJ. Chem. Soc., Trans., 1889
n ...
Meldola, Raphael, Coste, J. H.
openaire   +2 more sources

A novel approach toward the synthesis of some new tridentate Schiff bases from anil-like compounds [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
A novel method was developed for synthesizing a series of new three dentate Schiff base ligands starting from hydroxynaphthalidene pyrimidinyl amines with o-phenylenediamines or o-aminophenol or 2-amino-3-hydroxy-pyri-dine in the presence of ...
Bagheri Fatemeh, Olyaei Abolfazl
doaj   +1 more source

CATALYTIC PREPARATION OF THE AMIDOPHENOLS AND THE PHENYLENEDIAMINES. [PDF]

open access: yesJournal of the American Chemical Society, 1919
n ...
Brown, O. W., Carrick, L. L.
openaire   +2 more sources

SYNTHESIS AND IN-VITRO CYTOTOXIC ACTIVITY OF NOVEL BENZO[b]PHENAZINE-6,11-DIONE AND 1,4- NAPHTHOQUINONE DERIVATIVES [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 2008
5,12-Dihydrobenzophenazine-6,11-diones,2-Arylamino-3-chloro-1,4-naphthoquinones and 6,11-dihydrobenzo[b]phenazine-6,11-diones, were synthesized from 2,3-dichloro-1,4-naphthoquinoneand arylamines/phenylenediamines.
Eman Noaman   +2 more
doaj   +1 more source

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