Results 61 to 70 of about 37,749 (227)

Thermodynamics, Quantum and Electrochemical Studies of Corrosion of Iron by Piperazine Compounds in Sulphuric Acid

International Journal of Electrochemical Science, 2013
The corrosion inhibition of mild steel in 3.2M H2SO4 solution by 1-benzyl piperazine (C2), 1,6-di(1-benzyl piperazine-1-carboxamide)hexane (C4), bis(1-benzyl piperazine) disulfure de thiuram (C5) inhibitors has been studied by potentiodynamic ...
A. Ousslim, A. Chetouani, B. Hammouti, K. Bekkouch, S.S. Al-Deyab, A. Aouniti, A. Elidrissi   +6 more
doaj   +1 more source

Peptide Thioester and Triazole Derivatives Through On‐Resin Dual‐Modification of Peptide Thiosulfonates

Angewandte Chemie International Edition, EarlyView.
An on‐resin dual‐modification strategy for peptides is presented, comprising S‐alkynylation of peptide thiosulfonates and regioselective iridium‐catalyzed azide–thioalkyne cycloaddition. This method reliably provides access to peptides with intricate non‐canonical modifications, being compatible with complex peptides, alkynes and azides.
Marius Werner, Agnes Bergmann, Chenxi Liu, Mira Behnam, Christian Klein, Franziska Thomas   +5 more
wiley   +1 more source

A Comprehensive Study on the Synthesis, Nonlinear Optical Properties, and Biological Applications of Substituted Piperazine Derivatives [PDF]

Progress in Physics of Applied Materials
Piperazine is an important organic heterocyclic compound featuring a six-membered ring with two nitrogen atoms positioned opposite each other and four carbon atoms.
Sahaya Infant Lasalle B, Senthil Pandian Muthu, Ramasamy P   +2 more
doaj   +1 more source

Crystal structure of 2-(4-methylpiperazin-1-yl)quinoline-3-carbaldehyde

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C15H17N3O, the aldehyde group is twisted relative to the quinoline group by17.6 (2)° due to the presence of a bulky piperazinyl group in the ortho position.
R Nivedita Desai, S Sreenivasa, S. Naveen, N. K. Lokanath, P. A. Suchetan, D. B. Aruna Kumar   +5 more
doaj   +1 more source

Anomeric Amide Enabled Divergent Synthesis of Unsymmetrical Ureas, Carbamates, Thioesters, and Amides From Aldehydes

Angewandte Chemie International Edition, EarlyView.
An anomeric amide‐enabled divergent aldehyde functionalization sequence provides one‐pot access to unsymmetrical ureas, carbamates, thiocarbamates, thioesters, and amides. Key to this transformation is the formation of N‐Boc‐hydroxamate intermediates, which serve as platforms for orthogonal activation via Lossen‐type rearrangements, single‐electron ...
Jasper L. Tyler, Meiyi Zeng, Julius Wiener, Marie‐Christin Leusmann, Colin Stein, Constantin G. Daniliuc, Frank Glorius   +6 more
wiley   +1 more source

Synergistic Advanced Oxidation and Physicochemical Treatment Strategies for Antibiotic Removal and Resistance Mitigation in Water

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The presence of antibiotics in water not only causes environmental pollution but also increases the growth of antibiotic‐resistant bacterial genes, which pose serious threats to human beings and other water residents. Large numbers of people are reportedly affected by the resistant bacterial genes, as many broad‐spectrum antibiotics are not ...
Amir Zada, Shohreh Azizi
wiley   +1 more source

Structural Investigation of bis(4-Methyl-1-piperazineglyoximato)dipyridinato Cobalt(III) Chloro Dinitrate Trihydrate

Molecules, 2005
The crystal and molecular structure of the title compound,C24H36CoN10O4·2(NO3)·3(H2O)·Cl, have been determined by X-ray analysis: Cc (No: 9),a = 17.6920(4) å, b = 11.8163(2) å, c = 16.4752(4) å, ß = 91.679(1)°, Z = 4.
H. Fun, S. Işık, M. Macit, M. Akkurt, S. Öztürk   +4 more
doaj   +1 more source

A cost‐effective DNA extraction protocol for long‐read sequencing in non‐model plants

Applications in Plant Sciences, EarlyView.
Abstract Premise Third‐generation sequencing has revolutionized genomics, enabling in‐depth analysis of genome sequence, structure, and epigenetic features. Yet, extracting high‐quality DNA for long‐read sequencing remains a bottleneck—particularly in non‐model plants, such as mature trees growing in natural environments, which often contain abundant ...
Sofia Gaischuk, Cintia F. Marchetti, Ezequiel Petrillo, Fernando A. Rabanal, Detlef Weigel, Nicolás Bellora, M. Verónica Arana   +6 more
wiley   +1 more source

Antiplasmodial and Leishmanicidal Activities of 2-Cyano-3-(4-phenylpiperazine-1-carboxamido) Quinoxaline 1,4-Dioxide Derivatives

Molecules, 2012
Malaria and leishmaniasis are two of the World’s most important tropical parasitic diseases. Thirteen new 2-cyano-3-(4-phenylpiperazine-1-carboxamido) quinoxaline 1,4-dioxide derivatives (CPCQs) were synthesized and evaluated for their <em>in vitro&
Carlos Barea, Adriana Pabón, Silvia Galiano, Silvia Pérez-Silanes, German Gonzalez, Chloe Deyssard, Antonio Monge, Eric Deharo, Ignacio Aldana   +8 more
doaj   +1 more source

Rich‐Electronic Interface Promoting Hydrogen‐Bond Reversible Formation for Ultra‐Stable and Energy‐Efficient Catalytic CO2 Capture

Carbon Energy, EarlyView.
Bridging micro–macro scales, a biomass‐derived Ni@C interface creates electron‐rich sites and hydrogen‐bond proton‐relay pathways, tuning interfacial charge and reversible hydrogen bond to enhance carbon capture capacity. Verified by in situ spectroscopy, multi‐scale simulations, and long‐term industrial testing, this system enables low‐temperature and
Yuetong Zhao, Kun Zhao, Canyu Hu, Xinyu Guo, Pengyu Du, Dong Xu, Weiping Zhang, Liqiang Qi, Pan Zhang, Chenghua Sun, Bingyuan Zeng, Liwen Li, Shuming Du, Lemeng Wang, Dong Fu   +14 more
wiley   +1 more source