Results 51 to 60 of about 1,102 (170)

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

European Journal of Organic Chemistry, EarlyView.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

N-(4-Chlorophenyl)-1,1,1-trifluoro-N-(trifluoromethylsulfonyl)methanesulfonamide

Acta Crystallographica Section E, 2010
The title molecule, also called 4-chloro-N,N-bis(trifluoromethanesulfonyl)aniline, C8H4ClF6NO4S2, has non-crystallographic twofold symmetry with the pseudo-axis aligned along the Cl—C...C—N backbone of the molecule: the SO2CF3 ...
James L. Wardell, Edward R. T. Tiekink, Warner B. Kover, Adriana dos Santos Lages, Núbia Boechat, Solange M. S. V. Wardell   +5 more
doaj   +1 more source

Impacts of Fluorination at the Ortho‐Position of Carboxy Groups on Tetrakis(biphenyl)ethene‐Based Hydrogen‐Bonded Framework

Small, EarlyView.
This work provides new findings on the effect of fluorination on the substitution of TPE derivatives and the modulation of the structure and fluorescence properties of hydrogen‐bonded organic framework (HOF) of F‐CBPE. ABSTRACT Fluorination of building block molecules is one of the effective engineering approaches to modulate molecular assembly in ...
Takuto Fujii, Mario de la Hoz Tomás, Ryusei Oketani, Boiko Cohen, Ken‐ichi Otake, Kazuki Shiga, Norimitsu Tohnai, Abderrazzak Douhal, Ichiro Hisaki   +8 more
wiley   +1 more source

2,2-Dibenzylhydrazin-1-ium chloride

Acta Crystallographica Section E, 2013
In the title salt, C14H17N2+·Cl−, the central N atom is pyramidal (sum of bond angles = 330.9°) and there is a near orthogonal relationship between the benzene rings [dihedral angle = 89.95 (10)°].
Karen A. Crouse, Mohamed Ibrahim Mohamed Tahir, Thahira Begum S. A. Ravoof, Shahedeh Tayamon, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Effect of molecular perturbation on cocrystal formation: theophylline and its 8‐halo analogues with flavonoids

Acta Crystallographica Section C, Volume 82, Issue 8, Page 414-426, August 2026.
The tendency for alkaloid–flavonoid cocrystal formation is found to be markedly different for theophylline (Tph) compared to its 8‐halo analogues. Through screening with 13 common flavonoids, Tph is found to form cocrystals with six flavonoids, whereas 8‐Cl‐Tph and 8‐Br‐Tph each form cocrystals with just two, myricetin and kaempferol.
Weijian Ye, Herman H-Y. Sung, Ian D. Williams   +2 more
wiley   +1 more source

Supramolecular assemblies of copper(II) complexes: supramolecular synthon transferability and magnetic properties [PDF]

Acta Crystallographica Section A Foundations and Advances, 2019
In the pursuit of new technologies there is exigency for novel materials with desired physical and chemical properties. Despite the fact that metal-based crystalline solids provide an access to properties that are typically unavailable or difficult to achieve in metal-free settings (i.e. magnetic or optical).
Borovina, Mladen, Pajić, Damir, Đaković, Marijana, Penić, Nikolina   +3 more
openaire   +3 more sources

A Survey of Supramolecular Aggregation Based on Main Group Element⋯Selenium Secondary Bonding Interactions—A Survey of the Crystallographic Literature

Crystals, 2020
The results of a survey of the crystal structures of main group element compounds (M = tin, lead, arsenic, antimony, bismuth, and tellurium) for intermolecular M⋯Se secondary bonding interactions is presented.
Edward R. T. Tiekink
doaj   +1 more source

Safracin B as a Synthetic Linchpin: From Natural Product to Drug Intermediate and Beyond

European Journal of Organic Chemistry, Volume 29, Issue 27, 17 July 2026.
Safracin B is employed as a key precursor for the streamlined preparation of cyanosafracin B and safracin A. Careful tuning of the reaction parameters affords these derivatives in high efficiency, and full nuclear magnetic resonance signal assignments are established for the complex safracin frameworks.
Paolo Orlando, Simone Borsoi, Valerio Fasano, Andrea Citarella, Pietro Allegrini, Daniele Passarella   +5 more
wiley   +1 more source

Total Synthesis of Sacrolide A and Cytotoxic Evaluation

European Journal of Organic Chemistry, Volume 29, Issue 27, 17 July 2026.
Isolated from the edible cyanobacterium Aphanothece sacrum, sacrolide A is a highly potent antimicrobial and cytotoxic metabolite. Its total synthesis via a convergent strategy enabled accurate assessment of its effects on liver and colon cells, offering new insights into its bioactivity and potential health risks.
Priyanka Kataria, Kamel Hadj‐Kaddour, Alexis Giraudon, Jawad Belkheir, Alexandre Guy, Thierry Durand, Magali Gary‐Bobo, Camille Oger   +7 more
wiley   +1 more source

Triggered formation of thixotropic hydrogels by balancing competitive supramolecular synthons [PDF]

Soft Matter, 2013
Two component hydrogels have been obtained by formation of 1:1 complexes of bis(pyridyl urea)s with a range of dicarboxylic acids. The gels are thixotropic and undergo an assembly process in which short segments can reversibly assemble into an interconnected fibrous network.
Liu, K., Steed, J. W.
openaire   +3 more sources