Results 81 to 90 of about 6,596 (245)

NICKEL(III) COMPLEX DERIVED FROM 2-HYDROXY-3-METHOXYBENZALDEHYDE SEMICARBAZONE AND 2,2’-BIPYRIDINE [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
An ONO tridentate semicarbazone Schiff base and a bidentate dipyridyl ligand give a nickel(II) dimer, where atom centers are bridged by phenolate oxygen donors.
Carolina Vomisescu   +3 more
doaj  

Structural and antitrypanosomal data of different carbasones of piperitone

open access: yesData in Brief, 2016
This article reports data on four carbazones of piperitone: semicarbazone 1, thiosemicarbazone 2, 4-phenyl semicarbazone 3 and 4-phenyl thiosemicarbazone 4 prepared directly in situ from essential oil of Cymbopogon schoenantus, whose GC-FID and GC–MS ...
Amoussatou Sakirigui   +5 more
doaj   +1 more source

The Catalytic Enantioselective, Protecting Group-Free Total Synthesis of (+)-Dichroanone [PDF]

open access: yes, 2006
Herein we report the first enantioselective total synthesis of (+)-dichroanone, confirming the absolute configuration of the natural product. This protecting group-free route features the first application of our enantioselective Tsuji allylation in the ...
McFadden, Ryan M., Stoltz, Brian M.
core   +2 more sources

Controlling (E/Z)‐Stereoselectivity of −NHC=O Chlorination: Mechanism Principles for Wide Scope Applications

open access: yesChemistry – A European Journal, Volume 30, Issue 60, October 28, 2024.
Due to the increasing interest in halo compounds in chemotherapy and protein modification/targeting in chiral bioenvironments, controlling the halogenation stereoselectivity is state‐of‐the‐art science. Halogenation of carbamoyl group (−NHC=O) has never been mechanistically studied. Herein, we dive into depths of regioselectivity and stereoselectivity,
Raed M. Maklad   +3 more
wiley   +1 more source

Synthesis, Chemistry and Applications of 5-Hydroxymethyl-furfural And Its Derivatives [PDF]

open access: yes, 2001
The prospect of exciting research activity in the chemistry of furfural derived compounds such as 5-hydroxymethylfurfural (HMF), 2,5-furandicarbaldehyde and 2,5-furan-dicarboxylic acid prompted the writing of this article.
Lewkowski, Jarosław
core   +1 more source

1-Benzothiophene-2-carbaldehyde 4-ethylthiosemicarbazone

open access: yesActa Crystallographica Section E, 2009
The title compound, C13H15N3S2, crystallizes with two unique molecules, A and B, in the asymmetric unit. These differ principally in that the methyl group of the 4-ethylthiosemicarbazone moiety is ordered in molecule A but disordered over two positions ...
Safa'a Fares Kayed   +2 more
doaj   +1 more source

Four cytotoxic N4-substituted thiosemicarbazones derived from 2-hydroxynaphthalene-1-carboxaldehyde [PDF]

open access: yes, 2003
The X-ray crystal structures are reported of four novel and potentially O,N,S-tridentate donor ligands that demonstrate antitumour activity.
Bernhardt, P. V.   +3 more
core   +1 more source

Synthesis and Studies of Spectral and Thermal Properties of Some Mixed Ligand Complexes of Thorium(IV) and Dioxouranium(VI) With Semicarbazones as Primary Ligand and Sulfoxide as Secondary Ligand [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2004
The present work describes the studies on the coordination behaviour of 4[N-(benzalidene) amino]antipyrine semicarbazone (BAAPS) (I), 4[N-(furfural)amino]antipyrine semicarbazone (FFAAPS) (II) and 4[N-(cinnamalidene)amino]antipyrine semicarbazone ...
Ram K. Agarwal   +2 more
doaj  

Ferrocene-1-carbaldehyde 4-ethylthiosemicarbazone

open access: yesActa Crystallographica Section E, 2010
The asymmetric unit of title compound, [Fe(C5H5)(C9H12N3S)], contains two crystallographically independent molecules, A and B. The two cyclopentadienyl (Cp) rings are parallel to each other in both molecules, forming dihedral angles of 2.3 (3 ...
M. R. Vikneswaran   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy