نتایج جستجو برای: n substituted piperazinyl quinolones

تعداد نتایج: 1010427  

2017
Geraint H M Davies Zhao-Zhao Zhou Matthieu Jouffroy Gary A Molander

The azaborine motif provides a mimic of aromatic systems through replacement of a C═C bond with a B-N bond. In particular, 2,1-borazaronaphthalenes, accessible through robust methods of synthesis and subsequent functionalization, afford an ideal platform to use for a variety of applications. However, the scope of substructures for this archetype has been limited by the lack of nitrogen-containi...

Journal: :Molecules 2012
Jian Wu Shenghong Kang Qinkun Yuan Lijun Luo Juan Ma Qingcai Shi Song Yang

A series of N-substituted 5-chloro-6-phenylpyridazin-3(2H)-one derivatives were synthesized based on our previous work; all compounds were characterized by spectral data and tested for in vitro insecticidal activity against Plutella xylostella. The results showed that the synthesized pyridazin-3(2H)-one compounds possessed good insecticidal activities, especially the compounds 4b, 4d, and 4h wh...

Journal: :Organic & biomolecular chemistry 2011
Jeong Wu Yi Jaesung Park Kwang S Kim Byeang Hyean Kim

In this paper, we demonstrated a highly discriminated and reliable molecular switch based on the interaction between the self-duplex of (Py)A-substituted oligodeoxyadenylate and graphene oxide in aqueous solution. This system showed a clear on/off state through the association and dissociation of (Py)A-modified oligodeoxynucleotide with graphene oxide in manipulated pH conditions, high amplitud...

Journal: :Chemical communications 2011
Jung Hei Choi Tatsuhiko Honda Shu Seki Shunichi Fukuzumi

The X-ray crystal structure of 1-(3-methoxy-carbonyl)-propyl-1-thienyl-[6,6]-methanofullerene (ThCBM) was determined and the electron mobility of the single crystal was measured using a TRMC method to reveal high electron mobility (2 cm(2) V(-1) s(-1)) along the long axis (a-axis) and its remarkable anisotropy (7 times).

Journal: :Chemical communications 2007
Kazuyuki Maeda Yuji Mito Tetsuya Yanagase Sarah Haraguchi Tsutomu Yamazaki Takeyuki Suzuki

Organosilyl groups were successfully incorporated in AFI and VFI aluminophosphate frameworks using organoalkoxysilanes to modify hydrophobicity and acidity of the molecular sieves.

Journal: :Organic letters 2010
Balaji Purushothaman Sean R Parkin John E Anthony

The synthesis of new silylethyne-substituted hexacene derivatives to investigate their solubility, stability, and pi-stacking is reported. It was found that "butterfly" dimerization, rather than photooxidation, is the dominant decomposition pathway for these molecules and that stability can be enhanced by functionalization to prevent close contact between specific regions of the aromatic core. ...

Journal: :Chemical & pharmaceutical bulletin 2002
Jasna DoganKoruznjak Neda Slade Branimir Zamola Kresimir Pavelić Grace Karminski-Zamola

The novel derivatives of thieno[3',2':4,5]thieno[2,3-c]quinolones 6a, 6b, 7, 10a and 10b were synthesized in multistep synthesis starting from thiophene-3-carboxaldehyde and malonic acid reacting in aldol condensation or from 3-bromothiophenes or methyl 4-bromothiophene-2-carboxylate reacting in Heck reaction. They resulted in corresponding substituted thienylacrylic acids 3a-c, which were cycl...

2014
Dušan Ž. Mijin Jelena M. Marković Danijela V. Brković Aleksandar D. Marinković

2-Pyridones are important heterocyclic compounds that are widely used in medical chemistry, and their various derivatives have significant biological and medical applications. In this paper, the synthesis of 2-pyridones as well as 2-pyridone-based compounds, such as 2-quinolones, using microwave assisted organic chemistry is reviewed. The review is divided in three parts. In the first part, mic...

Journal: :Mediterranean Journal of Chemistry 2023

<p><span lang="EN-US">Based on prior research findings with pentacyclic triterpenoids, it was hypothesized that (un)-substituted benzylamides would exhibit enhanced cytotoxic activity compared to parent abietic acid. Conversely, none of these compounds cytotoxic, but (homo)-piperazinyl amides demonstrated significant across multiple cell lines, even at concentrations as low single-d...

Journal: :Dalton transactions 2015
Chunlin Lv Junjie Hu Rao Naumaan Nasim Khan Jin Zhang Yongge Wei

A class of monoorganoimido-substituted hexamolybdates containing a pyridine group have been firstly synthesized. Furthermore, a reaction protocol of alkylation based on the resulting pyridine-functionalized hexamolybdates has been developed, with which a type of zwitterionic clusters has been successfully obtained.

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