Results 41 to 50 of about 24,073 (289)

Arylhydrazines: Convenient Homogeneous Reductants for Scalable Cross‐Coupling

Angewandte Chemie, EarlyView.
Reductive cross‐couplings enable efficient C–C bond formation but are limited by the heterogeneity of Zn or costly reagents like TDAE. We report arylhydrazines as inexpensive, convenient reductants for Ni‐catalyzed sp2–sp3 coupling of aryl halides and secondary alkyl iodides. Mechanistic studies support hydrazine‐mediated NiII reduction for a NiI/NiIII
Nils Kurig, David A. Cagan, Kaid C. Harper, Yu Kawamata, Donna G. Blackmond, Phil S. Baran   +5 more
wiley   +2 more sources

The Development of a New Inhibition Kinetic Spectrophotometric Method for the Determination of Phenylhydrazine Based on its Inhibitory Effect on Oxidation of Methyl Red by Bromate in Micellar Medium

E-Journal of Chemistry, 2010
A new, simple, sensitive and selective kinetic spectrophotometric method was developed for the determination of trace amounts of phenylhydrazine over the range of 0.02-0.30 μg/mL.
Mohsen Keyvanfard
doaj   +1 more source

A Spectrophotometric Flow Injection Method for Determination of Ultratrace Amounts of Phenylhydrazine by Its Inhibition Effect on the Reaction of Thionin and Nitrite

Journal of Chemistry, 2013
A simple flow injection colorimetric procedure for determining phenylhydrazine was established. It is based on the reaction of phenylhydrazine in sulfuric acid with thionin and sodium nitrite.
M. Keyvanfard, Kh. Alizad
doaj   +1 more source

The maturation of reticulocytes. I. Following introduction of reticulocytes into polycythemic and normocythemic animals [PDF]

, 1975
Investigations were conducted on the life-span of "stress" reticulocytes and the fate of the early denucleated large-sized reticulocytes in circulating blood.
Shimada, Atsuko
core   +1 more source

Mechanisms of functional disoreders of erythrocytes in experimental phenylhydrazine-induced methemoblobinemia

Бюллетень сибирской медицины, 2005
It was established that methemoglobiemia in experimental rats induced by one intraperitoneal injection of phenylhydrazine chloride (DL50), for a long time (up to 21 days after the injection of the drug) is accompanied by disorders in functional ...
I. A. Shprling, V. V. Novitsky, N. V. Ryazantseva, O. N. Filippova, N. M. Shevtsova, O. A. Rogov, V. V. Bas   +6 more
doaj   +1 more source

The Antiproliferative Activity of Adiantum pedatum Extract and/or Piceatannol in Phenylhydrazine-Induced Colon Cancer in Male Albino Rats: The miR-145 Expression of the PI-3K/Akt/p53 and Oct4/Sox2/Nanog Pathways

Molecules, 2023
Colon cancer is one of the most common types of cancer worldwide, and its incidence is increasing. Despite advances in medical science, the treatment of colon cancer still poses a significant challenge.
Tarek Khamis, Abd Al-Aziz Abas Diab, Mansour H. Zahra, Samih Ebrahim El-Dahmy, Basant Ahmed Abd Al-Hameed, Adel Abdelkhalek, Mahmoud A. Said, Hussein Abdellatif, Liana Mihaela Fericean, Ioan Banatean-Dunea, Ahmed Hamed Arisha, Mai S. Attia   +11 more
doaj   +1 more source

Synthesis and viscosity behavior of poly(γ-p-biphenylmethyl-L-glutamate) in benzene/dichloroacetic acid mixtures, a comparison with poly(γ-benzyl-L-glutamate) [PDF]

, 1974
The synthesis of poly(γ-p-biphenylmethyl-L-glutamate), PBPLG, (poly{L-imino-1-[2-(4-biphenylylmethoxycarbonyl)ethyl]-2-oxoethylene}), (1d) is described. The viscosity behavior of this polymer in benzene/dichloroacetic acid mixtures (c=0,2.10 -3 - 1,4.10 -
Bantjes, Adriaan, Feijen, Jan, Groot, Klaas de, Sederel, Wim L., Visser, Anthonie C. de   +4 more
core   +3 more sources

Kidney damage phenylhydrazine and methods of its pathogenetic correction

Journal of Education, Health and Sport, 2017
In experiments on rats it was found that the administration of phenylhydrazine in doses of 10 mg, 50 mg and 100 mg / kg of body weight accompanied by a dose-dependent morphological damage of the kidneys.
V M Sirman, B A Nasibullin, L M Shafran, W Zukow, A I Gozhenko   +4 more
doaj   +3 more sources

Formation of meso, N-diphenylprotoporphyrin IX by an aerobic reaction of phenylhydrazine with oxyhemoglobins. [PDF]

, 2003
Administration of phenylhydrazine to rabbits resulted in the denaturation of hemoglobins in erythrocytes, causing the formation of intracellular precipitates known as Heinz bodies, severe hemolytic anemia, and reticulocytosis.
Abe, Tadashi, Araki, Kenta, Kinuta, Keiko, Kinuta, Masahiro, Li, Shun-Ai, Liang, Shuang, Nakanishi, Akira, Takei, Kohji, Yoshida, Yumi   +8 more
core   +1 more source

Derivatization of Methylglyoxal for LC-ESI-MS Analysis—Stability and Relative Sensitivity of Different Derivatives

Molecules, 2018
The great research interest in the quantification of reactive carbonyl compounds (RCCs), such as methylglyoxal (MGO) in biological and environmental samples, is reflected by the fact that several publications have described specific strategies to perform
Stefan Fritzsche, Susan Billig, Robby Rynek, Ramarao Abburi, Elena Tarakhovskaya, Olga Leuner, Andrej Frolov, Claudia Birkemeyer   +7 more
doaj   +1 more source