Results 41 to 50 of about 10,394 (273)

Synthesis, characterization and anticancer evaluation of novel tri-arm star shaped 1,3,5-triazine hydrazones [PDF]

open access: yes, 2012
A series of novel trisubstituted triazine hydrazones [N3C3(single bondOC6H4-p-CHdouble bond; length as m-dashNsingle bondNHsingle bondC(O)single bondC6H4-p-X)3] (X = H, Br, Cl, F, OH, OCH3, CH3, NO2, NH2) were prepared by a three-fold condensation ...
Patil, B.R.   +5 more
core   +1 more source

Synthesis, Characterization, Single-Crystal X-ray Structure and Biological Activities of [(Z)-N′-(4-Methoxybenzylidene)benzohydrazide–Nickel(II)] Complex

open access: yesCrystals, 2021
(Z)-N′-(4-methoxybenzylidene)benzohydrazide (HL) and its Ni(II) complex (Ni(II)-2L) were synthesized using eco-friendly protocols. The single X-ray crystal structure of Ni(II)-2L was solved.
Inas Al-Qadsy   +8 more
doaj   +1 more source

Synthesis and Conformational Assignment of N-(E)-Stilbenyloxymethylenecarbonyl-Substituted Hydrazones of Acetone and o-(m- and p-) Chloro- (nitro-) benzaldehydes by Means of and NMR Spectroscopy

open access: yesJournal of Spectroscopy, 2013
Eighteen new N-(E)-stilbenyloxyalkylcarbonyl-substituted hydrazones of ortho- (meta- and para-) chloro- (nitro-) benzaldehydes 1–18 and two analogous hydrazones of acetone 19-20 were prepared.
Przemysław Patorski   +2 more
doaj   +1 more source

Chemoenzymatic Synthesis of Heparan Sulfate Oligosaccharides by a Covalent Catch‐and‐Release Approach

open access: yesAngewandte Chemie, EarlyView.
A glycan having a hydrazide tag enables chemoenzymatic synthesis of HS oligosaccharides. The hydrazide can, under mild acidic conditions, react with an aldehyde‐containing resin to give an immobilized hydrazone that is stable under neutral conditions, allowing washing. The product can be released by transiminolysis using aqueous hydroxylamine to give a
Francesco Palmieri   +4 more
wiley   +2 more sources

Enantioselective aldol-type condensation mediated by chiral α-sulphinyl hydrazones [PDF]

open access: yes, 1983
Asymmetric synthesis occurs in the aldol-type condensation of α-sulphinyl hydrazones with aldehydes to give β-hydroxy-hydrazones and -ketones of good enantiomeric ...
C. Scolastico   +6 more
core   +1 more source

Mechanically Interlocked Indigo Photoswitches

open access: yesAngewandte Chemie, EarlyView.
By incorporating indigo photoswitches into the axle of a rotaxane, which features a hydrogen bonding macrocycle, we demonstrate improvement in activation wavelength, photostationary states and thermal reversion, an effect that is governed by topologically constrained supramolecular interactions.
Alexander M. Wilmshurst   +9 more
wiley   +2 more sources

Synthesis, studies electrochemical of complexes hydrazones containing a ferrocene fragment : a short review. [PDF]

open access: yes
Complexes hydrazones containing ferrocene fragments used in aqueous or non-aqueous solution have been widely studied in recent times. Good results of electrochemical properties were found.
Mohamed, Mariko
core   +1 more source

Autoxidation of Hydrazones. Some New Insights [PDF]

open access: yes, 2016
Autoxidation of hydrazones is a generally occurring reaction, leading mostly to the formation of α-azohydroperoxides. All structural kinds of hydrazones, having at least one hydrogen atom on nitrogen, are prone to autoxidation; however, there are marked ...
Darko Dolenc (1636474)   +1 more
core   +1 more source

Modified porphyrinoids from carbazates and hydrazones and the first crystal structure of a di-iminoporphodimethene [PDF]

open access: yes, 2005
Novel porphyrinoids with interrupted conjugation (di-iminoporphodimethenes) result from the Pd-catalyzed coupling of meso-bromo porphyrins and their metal complexes with carbazates and hydrazones, followed by aerial oxidation.
McMurtrie, John C.   +3 more
core   +1 more source

Fluoroalkylation métallo-catalysée des hydrazones [PDF]

open access: yes, 2016
Fluorine chemistry is attracting the growing interest of organic chemists due to its industrial exploitation in the pharmaceutical and agrochemical fields.
Prieto, Alexis
core   +2 more sources

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