Results 91 to 100 of about 4,363 (249)
eAmidation: An Electrochemical Amidation of Aldehydes via the Oxidation of N‐Aryl Hydrazones
Advanced Synthesis &Catalysis, Volume 367, Issue 14, July 29, 2025.The indirect electrochemical oxidation of N‐aryl hydrazones offers an efficient approach to access amides from aldehydes and amines. The AZADO‐mediated reaction enables the selective synthesis of a broad range of valuable amides using readily available aldehydes.
Luke Chen +2 more
wiley +1 more source
Advanced supersonic technology fuel tank sealants [PDF]
Status of the fuel tank simulation and YF-12A flight tests utilizing a fluorosilicone sealant is described. New elastomer sealant development is detailed, and comparisons of high and low temperature characteristics are made to baseline fluorosilicone ...
Parker, J. A., Rosser, R. W.
core +1 more source
مجلة بغداد للعلوم, 2019 Allopurinol derivative were prepared by reacting the (1-chloroacetyl)-2-Hydropyrazolo{3,4-d}pyrimidine-4-oneiwith 5- methoxy- 2-aminoibenzothiazoleiunder certain conditions to obtain new compound ( N- (2-aminoacetyl (5-methoxy) benzothiazole -2yl) (A4),
Khammas et al.
doaj +1 more source
Chemical research projects office: An overview and bibliography, 1975-1980 [PDF]
The activities of the Chemical Research Projects Office at Ames Research Center, Moffett Field, California are reported. The office conducts basic and applied research in the fields of polymer chemistry, computational chemistry, polymer physics, and ...
Heimbuch, A. H. +2 more
core +1 more source
Molecules, 2010 New 5-(2-thienyl)-1,2,4-triazoles and 5-(2-thienyl)-1,3,4-oxadiazoles namely, N-[3-mercapto-5-(2-thienyl)-1,2,4-triazol-4-yl]-N'-arylthioureas 4a–e, 2-arylamino-5-(2-thienyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles 5a–e, 3-arylaminomethyl-5-(2-thienyl ...
Mohamed A. Al-Omar
doaj +1 more source
Synthesis, Characterization & Biological Evaluation of Some Novel 1, 3, 4-Oxadiazole Derivatives [PDF]
, 2019 Substituted oxadiazole, 5-(2-hydroxyphenyl)-1, 3, 4-oxadiazole-2(3H)-thione was synthesized from salicylic acid. The titled oxadiazole derivatives were synthesized by making substitution at free N-(3H) position of 5-(2-hydroxyphenyl)-1, 3, 4 ...
Abirami, A V
core
Antibacterial and Enzyme Inhibition Study of Hydrazone Derivatives Bearing 1, 3, 4-Oxadiazole
Pakistan Journal of Chemistry, 2015 The antibacterial and lipoxygenase enzyme inhibition activities of two series of compounds have been investigated in the presented work. The 4-methyl/hydroxy benzoic acids (1a & 1b) were used as starting materials to prepare corresponding esters (2a & 2b), hydrazides (3a & 3b), 5-(4-methylphenyl/4-hydroxyphenyl)-1,3,4-oxadiazol-2-thiols (4a & 4b), S ...
S. Sheral +7 more
openaire +2 more sources
Cross Linking and Degradation Mechanisms in Model Sealant Candidates [PDF]
Model compounds were investigated as to which type of heterocyclic ring is the most advantageous for curing sealants based on perfluoroalkylether chains. The relative thermal, thermal oxidative, hydrolytic, and fuel stability of potential crosslinks were
Ito, T. I. +4 more
core +1 more source
Analgesic Activity of some 1-Phenyl-3-aryl-5- (4-(butanoloxy) phenyl) 1H-pyrazoles [PDF]
, 2016 A series of analgesic activity of synthesised 1 -Phenyl-3-aryl- 5-(4-(butanoloxy) phenyl) 1H-pyrazoles were synthesized from chalcones and screened for their in vitro analgesic activity.
Anju Goyal, Sandeep Jain
core +2 more sources
SYNTHESIS, CHARACTERIZATION AND EVALUATION OF ANTICANCER ACTIVITY OF SOME NEW SCHIFF BASES OF 1, 3, 4-THIADIAZOLE DERIVATIVES [PDF]
, 2015 Objective: N-benzylidene-5-phenyl-1, 3, 4-thiadiazol-2-amine derivatives: Synthesis and anticancer activity.Methods: In the present study five new derivatives of N-benzylidene-5-phenyl-1, 3, 4-thiadiazol-2-amine (Schiff bases containing 1, 3, 4 ...
B, Ashok Kumar +5 more
core