Results 91 to 100 of about 20,087 (300)

Tunable polylactide plasticizer design: Rigid stereoisomers

, 2021
Wenxiang Xuan, Karin Odelius, Minna Hakkarainen   +2 more
openalex   +1 more source

The Chemistry of Subphthalocyanines: Synthetic Strategies for their Axial, Peripheral, and Remote Postfunctionalization

ChemistryEurope, EarlyView.
From axial and peripheral reactivity to remote derivatization, the chemical versatility of subphthalocyanines (SubPcs) renders them ideal scaffolds for the design of advanced functional materials. This review assembles the synthetic toolbox, key reaction conditions, and future challenges in SubPc functionalization, guiding the development of next ...
Marta Gómez‐Gómez, Juan Laforga‐Martín, Jorge Labrador‐Santiago, Jorge Labella, Tomás Torres   +4 more
wiley   +1 more source

THE STRUCTURE AND CONFORMATION OF LIGNIN AS JUDGED BY X-RAY CRYSTALLOGRAPHIC INVESTIGATIONS OF LIGNIN MODEL COMPOUNDS: ARYLGLYCEROL -SYRINGYL ETHERS

BioResources, 2009
Structural elements of the arylglycerol -syringyl ether type are very frequent in hardwood lignins. A variety of crystalline dimeric lignin models representing different diastereomeric forms of structural elements in lignin of this type have been ...
Knut Lundquist, Vratislav Langer, Jim Parkås   +2 more
doaj  

Relationship Between the Binding Mode and the Activity of Stereoisomers of Beta-Lactamase Inhibitors [PDF]

, 2005
Sung-Hee Mok
openalex   +1 more source

Synthesis of α‐Pentafluorosulfanylated‐β2,3‐Amino Esters

ChemistryEurope, EarlyView.
De novo α‐SF5‐β2,3‐amino esters are now accessible through a straightforward aza‐Michael reaction using a series of newly developed (E)‐α‐SF5‐α,β‐unsaturated esters. Two new, highly functionalized, contiguous tertiary stereocenters are formed with diastereodivergence governed by the choice of solvent and/or base.
Thi Mo Nguyen, Guilhem Colomer, Oscar Maugue‐Sauze, Nicolas Blanchard, Vincent Bizet, Dominique Cahard   +5 more
wiley   +1 more source

Computational insights into the stereo-selectivity of catechins for the inhibition of the cancer therapeutic target EGFR kinase

Frontiers in Pharmacology
The epidermal growth factor receptor (EGFR) plays a crucial role in regulating cellular growth and survival, and its dysregulation is implicated in various cancers, making it a prime target for cancer therapy.
Mohd Rehan, Mohd Rehan, Firoz Ahmed, Firoz Ahmed, Mohammad Imran Khan, Hifzur Rahman Ansari, Shazi Shakil, Shazi Shakil, Shazi Shakil, Moustafa E. El-Araby, Salman Hosawi, Mohammad Saleem, Mohammad Saleem   +12 more
doaj   +1 more source

Isomerism as Manifestation of Intrinsic Symmetry of Molecules: Lunn–Senior’s Theory [PDF]

, 2009
This article presents the principal results of the doctoral thesis “Isomerism as internal symmetry of molecules” by Valentin Vankov Iliev (Institute of Mathematics and Informatics), successfully defended before the Specialised Academic Council for ...
Iliev, Valentin
core  

Imidazoline‐Proline and Imidazoline‐Prolinate Ligands for Copper‐Catalyzed Asymmetric Exo‐Selective [3 + 2] Cycloaddition of Iminoesters with Nitroalkenes

ChemistryEurope, EarlyView.
From a modular synthesis of nonphosphine chiral nitrogen‐based chiral imidazoline–amino acid ligands, two new chiral imidazoline–proline‐copper catalysts are developed for targeting exo‐selective [3 + 2] cycloaddition reaction. Density functional theory studies rationalize the observed stereoselectivity and the distinct chiral pockets of the two ...
Yan Yu, Takuya Shimada, Chihiro Tokumitsu, Ayaka Fujiwara, Takayoshi Arai   +4 more
wiley   +1 more source

Propranolol stereoisomer plasma concentrations and portal haemodynamic response in patients with liver cirrhosis [PDF]

, 1999
Schepke, Raab, Hoppe, Brensing, Paar, Potyka, Sauerbruch   +6 more
openalex   +1 more source

Gold(I)‐Catalyzed Domino Cyclization for the Construction of Trispirocyclic Cyclohexanes

ChemistryEurope, EarlyView.
We describe herein a series of intricate trispirocyclic architectures that have been synthesized from readily available substrates through an operationally simple one‐pot transformation under mild conditions. An unprecedented gold(I)‐catalyzed domino cyclization involving 2‐ethynylbenzyl alcohol derivatives and heterocyclic α,β‐unsaturated imines ...
Manon Genet, Jérôme Marrot, Isabelle Chataigner, Xavier Moreau   +3 more
wiley   +1 more source