Chemical Science, Год журнала: 2023, Номер 14(43), С. 12299 - 12307
Опубликована: Янв. 1, 2023
An ATP-fueled DNA based enzymatic reaction network regulates transient co-assemblies of micron-scale colloids. The system produces minimal waste, shows ATP-dependent behavior, and can be reactivated for up to three consecutive cycles.
Язык: Английский
Chemistry - A European Journal, Год журнала: 2024, Номер 30(37)
Опубликована: Апрель 8, 2024
A well-behaved dynamic library composed of two imines and corresponding amines was subjected to the action an activated carboxylic acid (ACA), whose decarboxylation is known be base promoted, in different solvents, namely CD
Язык: Английский
Процитировано
2
JACS Au, Год журнала: 2024, Номер 4(11), С. 4445 - 4454
Опубликована: Окт. 14, 2024
The development of chiroptical molecular switches for chiral sensing, data communication, optical displays, logic gates, and asymmetric catalysis is currently a vibrant frontier science technology. Herein, we report practical artificial dynamic system based on 1,2-diaxial atropisomer. Organocatalytic parallel kinetic resolution allows the divergent synthesis two sets stereoisomers with vicinal C-C N-N axes from same racemic single-axis substrates. By simply varying configuration single catalyst, all four are accessible. successive conduction covalent unlocking/locking thermal-isomerization processes enables sequential switching between atropisomeric states electronic circular dichroism signal reversal, providing an example multistate switches.
Язык: Английский
Процитировано
2
Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(50)
Опубликована: Окт. 17, 2022
A [2]rotaxane-based molecular shuttle with an acid-responsive asymmetric macrocycle on a symmetric dumbbell axle is reported. Upon adding TFA, the macrocycle, namely amine naphthotube, protonated and translocates from di(quaternary ammonium) station to triazole stations because of electrostatic repulsion weakened binding. The shuttling kinetics are slow due steric hindrance caused by ethyl group quaternary ammonium center can be followed 1 H NMR spectroscopy. Interestingly, it was found that depends concentration TFA. kinetic intermediate detected even captured in presence high Extensive control experiments revealed capture related different protonation states rotaxanes.
Язык: Английский
Процитировано
9
Symmetry, Год журнала: 2023, Номер 15(6), С. 1261 - 1261
Опубликована: Июнь 15, 2023
Atropisomers, i.e., stereoisomers that are distinct because their free rotation about a single bond is hindered by steric interactions between nearby bulky groups or electrostatics, may interact with surroundings in different ways, and also exhibit properties. They be found as natural products, pharmaceutical agricultural active ingredients, chiral ligands organocatalysts, functional materials. Our ability to synthesize them stereoselectively sustainable way, using achiral materials simply the aid of an organocatalyst mild conditions, has become hot topic research. This review provides overview recent achievements synthesis atropisomers containing C-N N-N axes chirality.
Язык: Английский
Процитировано
5
Chemical Science, Год журнала: 2023, Номер 14(43), С. 12299 - 12307
Опубликована: Янв. 1, 2023
An ATP-fueled DNA based enzymatic reaction network regulates transient co-assemblies of micron-scale colloids. The system produces minimal waste, shows ATP-dependent behavior, and can be reactivated for up to three consecutive cycles.
Язык: Английский
Процитировано
5