Results 11 to 20 of about 76,241 (267)

The mechanism of pyridine hydrogenolysis on molybdenum-containing catalysts : IV. The conversion of piperidine [PDF]

open access: yes, 1973
The conversion of piperidine was investigated on a CoO-MoO3-Al2O3 catalysts as a function of the temperature, reaction time, initial piperidine partial pressure and the hydrogen pressure.\ud \ud At 60 atm of hydrogen and conversions below 50% piperidine ...
Mars, P., Neyens, W.J., Sonnemans, J.
core   +2 more sources

Overview of Piperidine and Morpholine Derivatives as Promising Sources of Biologically Active Compounds (Review)

open access: yesРазработка и регистрация лекарственных средств, 2023
Introduction. The search for new, effective and safe pharmacologically active substances remains an urgent task in the field of pharmacy. Many compounds of the piperidine and morpholine series are widely used in medical practice and belong to an ...
A. E. Khamitova, D. A. Berillo
doaj   +1 more source

Microwave-Assisted Synthesis and Evaluation of Antimicrobial Activity of 3-{3-(s-Aryl and s-Heteroaromatic)acryloyl}-2Hchromen-2-one Derivatives [PDF]

open access: yes, 2010
The exploration of potential utilization of microwaves as an energy source for heterocyclic synthesis was herein investigated using condensation of 3-acetylcoumarin (1) with aromatic and heteroaromatic aldehydes to afford the corresponding aromatic ...
Ajani   +47 more
core   +1 more source

Switching the stereochemical outcome of 6-endo-trig cyclizations; Synthesis of 2,6-Cis-6-substituted 4-oxopipecolic acids [PDF]

open access: yes, 2012
A base-mediated 6-endo-trig cyclization of readily accessible enone-derived α-amino acids has been developed for the direct synthesis of novel 2,6-cis-6- substituted-4-oxo-L-pipecolic acids. A range of aliphatic and aryl side chains were tolerated by
Agami C.   +41 more
core   +1 more source

Clerocidin selectively modifies the gyrase-DNA gate to induce irreversible and reversible DNA damage [PDF]

open access: yes, 2008
Clerocidin (CL), a microbial diterpenoid, reacts with DNA via its epoxide group and stimulates DNA cleavage by type II DNA topoisomerases. The molecular basis of CL action is poorly understood.
Binaschi   +34 more
core   +1 more source

New developments in the synthesis of emicoron [PDF]

open access: yes, 2018
This paper reports on the modification of two synthetic steps in the usual protocol used for obtaining EMICORON. EMICORON is a benzo[ghi]perylen-diimide, which was synthesized for the first time in our laboratory in 2012, and has shown to have in vivo ...
Bianco, Armandodoriano   +5 more
core   +1 more source

1-[(3-Nitrophenyl)(piperidin-1-yl)methyl]piperidine [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
In the crystal structure of the title compound, C17H25N3O2, one-dimensional chains are formed via intermolecular C—H...O hydrogen bonds along the a axis.
Zhe-Qin Wang, Yi Ma
openaire   +3 more sources

Anticancer Applications and Pharmacological Properties of Piperidine and Piperine: A Comprehensive Review on Molecular Mechanisms and Therapeutic Perspectives

open access: yesFrontiers in Pharmacology, 2022
Piperine and piperidine are the two major alkaloids extracted from black pepper (Piper nigrum); piperidine is a heterocyclic moiety that has the molecular formula (CH2)5NH.
Sicon Mitra   +8 more
doaj   +1 more source

4-[4-(Piperidin-1-yl)piperidin-1-yl]benzonitrile [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2010
In the title compound, C(17)H(23)N(3), both piperidine rings adopt chair conformations. In the crystal packing, intermolecular C-H⋯N hydrogen bonds and C-H⋯π interactions are present.
Guo-bin Xu   +3 more
openaire   +3 more sources

Hoogsteen base pairs proximal and distal to echinomycin binding sites on DNA [PDF]

open access: yes, 1987
Forms of the DNA double helix containing non-Watson-Crick base-pairing have been discovered recently based on x-ray diffraction analysis of quinoxaline antibiotic-oligonucleotide complexes.
Dervan, Peter B., Mendel, David
core   +2 more sources

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