Results 271 to 280 of about 16,917,031 (330)

Metallacyclopentadienes: synthesis, structure and reactivity

Chemical Society Reviews, 2017
This review provides a comprehensive overview of the preparation, structure and reactivity of five-membered metallacyclopentadienes.
Wangyang Ma, Chao Yu, Tianyang Chen, Ling Xu, Wen-Xiong Zhang, Zhenfeng Xi   +5 more
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Azatriquinanes:  Synthesis, Structure, and Reactivity

The Journal of Organic Chemistry, 1998
Azatriquinane, a tricyclic amine with rigid, hemispherical topology, is synthesized in six steps from pyrrole. This first example of a [2.2.2]cyclazine can be oxidatively dimerized to a novel, highly strained heptacycle or oxidized with chlorine to give an azatriquinacene, a theoretical precursor to diazadodecahedrane via Woodward dimerization.
Nicholas M., Hext, Jens, Hansen, Alexander J., Blake, David E., Hibbs, Michael B., Hursthouse, Oleg V., Shishkin, Mark, Mascal   +6 more
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Barbiturates–Structure Versus RIA Reactivity

Clinical Toxicology, 1981
Over 90 different compounds having structural similarities to barbituric acid were analyzed by radioimmunoassay (RIA) using 125I-secobarbital reagents (Roche). Affinities were compared with molecular structures and a number of observations are made.
R D, Budd, F C, Yang, K O, Utley
openaire   +2 more sources

Structure-Based Reactivity Profiles of Reactive Metabolites with Glutathione

Chemical Research in Toxicology, 2020
Therapeutic agents can be transformed into reactive metabolites under the action of various metabolic enzymes in vivo and then covalently combine with biological macromolecules (such as protein or DNA), resulting in increasing toxicity. The screening of reactive metabolites in drug discovery and development stages and monitoring of biotransformation in
Xiaomei Liu, Hong Lv, Yaqing Guo, Tekleab Teka, Xiaoming Wang, Yuhong Huang, Lifeng Han, Guixiang Pan   +7 more
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Structure and reactivity of tRNA

Journal of Cellular Physiology, 1969
All tRNA sequences so far known can be folded into a cloverleaf structure. Physical data and chemical reactions allow us to draw conclusions on secondary (cloverleaf) and tertiary structure. N-oxidation of adenosine to adenosine-1-N-oxide can be done with monoperphthalic acid in non-base-paired regions of polynucleotides and can be followed easily by ...
F, Cramer, V A, Erdmann, F, von der Haar, E, Schlimme   +3 more
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Inkjet Printing of Reactive Silver Ink on Textiles.

ACS Applied Materials and Interfaces, 2019
Inkjet printing of functional inks on textiles to embed passive electronics devices and sensors is a novel approach in the space of wearable electronic textiles.
Hasan Shahariar, Inhwan Kim, Henry Soewardiman, J. Jur   +3 more
semanticscholar   +1 more source

Structured Reactive Controllers

Autonomous Agents and Multi-Agent Systems, 2001
Service robots, such as autonomous office couriers or robot tourguides, must be both reliable and efficient. This requires them to flexibly interleave their tasks, exploit opportunities, quickly plan their course of action, and, if necessary, revise their intended activities.
openaire   +1 more source

RIA Opiates: Structure versus Reactivity

Clinical Toxicology, 1980
Twenty-six different opiates were analyzed by radioimmunoassay (RIA) at five different concentrations. At attempt is made to relate structural differences to the affinity of the compounds for the Roche RIA morphine antibody. The effects of substituent placement on the morphine molecule are studied.
R D, Budd, W J, Leung, F C, Yang
openaire   +2 more sources

SPIROPHOSPHORANES – STRUCTURE REACTIVITY

Phosphorus and Sulfur and the Related Elements, 1976
Abstract The first part of this article will deal with the reactions of spirophosphoranes with a P[sbnd]H bond. These compounds contain two five-membered rings and have four oxygen atoms, or three oxygen atoms and one nitrogen atom, or two oxygen and two nitrogen atoms directly bonded to the phosphorus atom, which in all cases bears an hydrogen atom ...
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Structural Requirements of Acetylcholinesterase Reactivators

Mini-Reviews in Medicinal Chemistry, 2006
Nerve agents (sarin, soman, cyclosarin, tabun and VX agent) and pesticides (paraoxon, chlorpyrifos, TEPP) represent extremely toxic group of organophosphorus compounds (OPCs). These compounds inhibit enzyme acetylcholinesterase (AChE, EC 3.1.1.7) via its phosphorylation or phosphonylation at the serine hydroxy group in its active site. Afterwards, AChE
Kamil, Kuca, Daniel, Juna, Kamil, Musilek   +2 more
openaire   +2 more sources