Results 11 to 20 of about 13,076 (231)

Metalation Studies on Titanocene Dithiolates

Inorganics, 2018
Titanocene bis-arylthiolates [(C5H4X)(C5H4Y)Ti(SC6H4R)2] (X,Y = H, Cl; R = H, Me) can be prepared from the corresponding titanocene dichlorides by reacting with the thiols in the presence of DABCO as a base.
Tilmann G. Kießling, Karlheinz Sünkel
doaj   +1 more source

Dimensionality Control in Crystalline Zinc(II) and Silver(I) Complexes with Ditopic Benzothiadiazole-Dipyridine Ligands

Chemistry, 2021
Three 2,1,3-benzothiadiazole-based ligands decorated with two pyridyl groups, 4,7-di(2-pyridyl)-2,1,3-benzothiadiazol (2-PyBTD), 4,7-di(3-pyridyl)-2,1,3-benzothiadiazol (3-PyBTD) and 4,7-di(4-pyridyl)-2,1,3 benzothiadiazol (4-PyBTD), generate ZnII and ...
Teodora Mocanu, Nataliya Plyuta, Thomas Cauchy, Marius Andruh, Narcis Avarvari   +4 more
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Combinatorial Synthesis of Structurally Diverse Triazole-Bridged Flavonoid Dimers and Trimers

Molecules, 2016
Flavonoids are a large family of compounds associated with a broad range of biologically useful properties. In recent years, synthetic compounds that contain two flavonoid units linked together have attracted attention in drug discovery and development ...
Tze Han Sum, Tze Jing Sum, Warren R. J. D. Galloway, Súil Collins, David G. Twigg, Florian Hollfelder, David R. Spring   +6 more
doaj   +1 more source

Antitumor Profile of Carbon-Bridged Steroids (CBS) and Triterpenoids

Marine Drugs, 2021
This review focuses on the rare group of carbon-bridged steroids (CBS) and triterpenoids found in various natural sources such as green, yellow-green, and red algae, marine sponges, soft corals, ascidians, starfish, and other marine invertebrates.
Valery M. Dembitsky, Tatyana A. Gloriozova, Vladimir V. Poroikov   +2 more
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Valence isomers of Aromatic Compounds: On the Mechanism of the Katz Reaction

CHIMIA, 1987
Lithium salts of small and medium-sized aromatic anions react with methylene chloride and alkyllithium to afford bridged bicyclobutanes or related polycyclic compounds.
Ulrich Burger, Pierre Jean Thorel, Yves Mentha   +2 more
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Aspergoterpenins A–D: Four New Antimicrobial Bisabolane Sesquiterpenoid Derivatives from an Endophytic Fungus Aspergillus versicolor

Molecules, 2018
Aspergoterpenins A–D (1–4), four new bisabolane sesquiterpenoid derivatives, were obtained from the endophytic fungus, Aspergillus versicolor, together with eight known compounds (5–12), and their structures were elucidated by a ...
Zhi-Yong Guo, Ming-Hui Tan, Cheng-Xiong Liu, Meng-Meng Lv, Zhang-Shuang Deng, Fei Cao, Kun Zou, Peter Proksch   +7 more
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Isotypic one-dimensional coordination polymers: catena-poly[[dichloridocadmium]-μ-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato-κ2N5:N6] and catena-poly[[dichloridomercury(II)]-μ-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato-κ2N5:N6]

Acta Crystallographica Section E: Crystallographic Communications, 2016
The isotypic title one-dimensional coordination polymers, [CdCl2(C18H14N4O4)]n, (I), and [HgCl2(C18H14N4O4)]n, (II), are, respectively, the cadmium(II) and mercury(II) complexes of the dimethyl ester of 5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylic acid.
Montserrat Alfonso, Helen Stoeckli-Evans
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Strategies towards expansion of chemical space of natural product-based compounds to enable drug discovery

Brazilian Journal of Pharmaceutical Sciences, 2018
Natural products (NPs) are an excellent source of biologically active molecules that provide many biologically biased features that enable innovative designing of synthetic compounds.
Daniel Gedder Silva, Flavio da Silva Emery   +1 more
doaj   +1 more source

Design of New Bridge-Ring Energetic Compounds Obtained by Diels–Alder Reactions of Tetranitroethylene Dienophile

The Journal of Physical Chemistry A, 2018
The density functional theory method was employed to calculate three-dimensional structures for a series of novel explosophores. The design of new molecules (DA1-DA12) was based on the bridge-ring structures that could be formed via Diels-Alder (DA) reaction of selected nitrogen-rich dienes and tetranitroethylene dienophile.
Piao He, Hao-Zheng Mei, Le Wu, Jun-Qing Yang, Jian-Guo Zhang, Adva Cohen, Michael Gozin   +6 more
openaire   +3 more sources

A bi-alkyl-bridge strategy for highly thermally stable tetrazoles via enhanced conjugation

Energetic Materials Frontiers
In this study, we introduced the “bi-alkyl-bridge” strategy to synthesize a bi-alkyl-bridged cyclotetrazole energetic material. This method improves the stability by introducing an alkyl bridge at the C and N positions of the tetrazole to form a bi-alkyl-
Jin-yu Chang, Ning Ding, Yan-da Jiang, Xu-dong Xu, Bao-jing Tian, Qi Sun, Sheng-hua Li   +6 more
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