Results 31 to 40 of about 21,852 (266)

Toxicidade do herbicida S-metolachlor em plantas de milho provenientes de sementes com diferentes formatos e dimensões S-metholachlor toxicity in maize plants originated from seeds with different sizes and shapes

Planta Daninha, 2006
Este trabalho teve como objetivo avaliar a toxicidade do herbicida S-metolachlor em plantas de milho oriundas de sementes com diferentes características morfológicas.
M.D.A. Rosenthal, S.O. Procópio, J.J.O. Pinto, E.A. Jacob Júnior, W.B. Peres, R. Manica, J.F. Zanatta, A. Cargnelutti Filho, D.C. Sganzerla, J.C. Carneiro, L.G. Canabarro, W. Franzini   +11 more
doaj   +1 more source

Chemical Synthesis of Pseudomonas aeruginosa, Staphylococcus aureus, and Acinetobacter baumannii Capsular Polysaccharide Fragments as Leads for Cross-Protection. [PDF]

Angew Chem Int Ed Engl
A total of 16 chemically synthesized capsular polysaccharide (CPS) fragments related to Pseudomonas aeruginosa, Staphylococcus aureus, and Acinetobacter baumannii were analyzed by glycan microarray. Comparative screening revealed three conserved epitopes that act as cross‐protective vaccine lead candidates against multidrug‐resistant (MDR) bacterial ...
Mishra AK, Reuber EE, Rai D, Sander LE, Duerr J, Graeber SY, Mall MA, Fries BC, Seeberger PH, Kulkarni SS.   +9 more
europepmc   +3 more sources

Determination of protonation constants and structural correlations for some tertiary formamides and acetamides in sulfuric acid with UV spectroscopy

Macedonian Journal of Chemistry and Chemical Engineering, 2015
The protonation of ten aliphatic amides in sulfuric acid media was studied by UV spectroscopy. The pKBH+ values and solvation parameters were calculated using Yates and McClelland Method, Excess Acidity Method and Bunnett and Olsen Method.
Goran Stojković, Elizabeta Dimitrieska-Stojković, Emil Popovski   +2 more
doaj   +1 more source

N-(3-Chlorophenyl)acetamide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2008
The conformation of the N-H bond in the structure of the title compound (3CPA), C(8)H(8)ClNO, is anti to the meta-chloro substituent, in contrast to the syn conformation observed for the ortho-chloro substituent in N-(2-chloro-phen-yl)acetamide, syn to both the ortho and meta chloro substituents in N-(2,3-dichloro-phen-yl)acetamide, and syn to the ...
Hartmut Fuess, Sabine Foro, B. Thimme Gowda   +2 more
openaire   +3 more sources

Recent Advances in Homogeneous Metal-Catalyzed Aerobic C–H Oxidation of Benzylic Compounds [PDF]

, 2018
Csp(3)-H oxidation of benzylic methylene compounds is an established strategy for the synthesis of aromatic ketones, esters, and amides. The need for more sustainable oxidizers has encouraged researchers to explore the use of molecular oxygen.
Domínguez Pérez, Pilar Esther, Herrero Corral, María Teresa, San Martín Faces, Raúl, Urgoitia Gabikaetxebarria, Garazi   +3 more
core   +2 more sources

N-(4-Sulfamoylphenyl)acetamide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
In the title compound, C8H10N2O3S, the dihedral angle between the acetamide group and the benzene ring is 15.59 (12)° and the amino group is close to being perpendicular to the benzene ring [N—S—Car—Car(ar = aromatic) torsion angle = 109.4 (2)°]. In the crystal, molecules are linked into supramolecular tubes parallel to [001] by amine–amide N—H...O ...
Abdullah M. Asiri, Hassan M. Faidallah, Tariq R. Sobahi, Seik Weng Ng, Edward R. T. Tiekink   +4 more
openaire   +3 more sources

Synthesis and reactions of 1-amino-1,5,6,10b-tetrahydroimidazo[2,1-a]isoquinolin-2(3H)-ones [PDF]

, 2008
1-Amino-1,5,6,10b-tetrahydroimidazo[2,1-a]isoquinolin-2(3H)-ones, as previously unknown ring-annelated isoquinolines with a 3-aminoimidazolidin-4-one scaffold, were selectively prepared upon reacting 2-carbamoylmethyl- or 2-ethoxycarbonylmethyl-3,4 ...
De Kimpe, Norbert, Holzer, Wolfgang, Mangelinckx, Sven, Martynaitis, Vytas, Solovjova, Joana, Šačkus, Algirdas   +5 more
core   +2 more sources

The synthesis and biological assessment of [[1,2,4]triazolo[4,3-a]pyridine-3-yl]acetamides with an 1,2,4-oxadiazol cycle in positions 6, 7 and 8

Журнал органічної та фармацевтичної хімії, 2019
Fused heterocyclic 1,2,4-triazoles have provided much attention due to variety of their interesting biological properties. Aim. To develop the method for the synthesis of novel 2-[(1,2,4-oxadiazol-5-yl)-[1,2,4]triazolo[4,3-a]pyridine-3-yl]acetamides and
V. R. Karpina, S. S. Kovalenko, S. M. Kovalenko, O. V. Zaremba, O. V. Silin, T. Langer   +5 more
doaj   +1 more source

2-(4-Chlorophenyl)acetamide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
In the title compound, C(8)H(8)ClNO, the acetamide group is twisted out the benzene plane with a dihedral angle of 83.08 (1)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming layers parallel to the ab plane.
Dong-Sheng Ma, Pei-Jiang Liu, Shuai Zhang, Guang-Feng Hou   +3 more
openaire   +3 more sources

2-(4-Iodophenoxy)acetamide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2011
The mol-ecule of the title compound, C(8)H(8)INO(2), amide-typical resonance shortens the nominal C-N single bond to 1.322 (7) Å. In the crystal, hydrogen bonds involving both nitro-gen-bound H atoms as well as C-H⋯O contacts connect the mol-ecules into double layers approximately perpendicular to the crystallographic b axis.
Richard Betz, Cedric McCleland, Stephen Glover   +2 more
openaire   +3 more sources