Umpolung Reactivity of in Situ Derived Aryl Hydrazones: An Asymmetric Brønsted Acid Catalyzed Strategy to Access Fused Pyrazolidines

Organic Letters, Год журнала: 2024, Номер 26(32), С. 6853 - 6858

Опубликована: Авг. 1, 2024

Herein, we report an intriguing cascade strategy for synthesizing optically active fused pyrazolidines featuring three contiguous stereogenic centers. The formyl-tethered enones are templates the developed umpolung reactivity, showcasing diverse substrate adaptability with various arylhydrazines. chiral phosphoric acid catalyst offers stereochemical guidance, forming commendable to excellent stereoselectivities. Additionally, scalability, postsynthetic transformations, and instability of unacylated have been successfully demonstrated.

Язык: Английский

Synthesis and growth of solution-processed chiral perovskites

Journal of Physics Energy, Год журнала: 2024, Номер 6(4), С. 042001 - 042001

Опубликована: Авг. 12, 2024

Abstract In materials science, chiral perovskites stand out due to their exceptional optoelectronic properties and the versatility in structure composition, positioning them as crucial advances of technologies spintronics chiroptical systems. This review underlines critical role synthesizing growing these materials, a process integral leveraging complex interplay between structural chirality distinctive properties, including chiral-induced spin selectivity activity. The paper offers comprehensive summary discussion methods used synthesis growth perovskites, delving into extensive techniques, fundamental mechanisms, strategic approaches for engineering low-dimensional alongside creation novel ligands. necessity developing new synthetic maintaining precise control during is emphasized, aiming enhance boost efficiency selectivity.

Язык: Английский

Benzo[f]indazoles: a new class of glow dyes for the generation of versatile fluorophores

Dyes and Pigments, Год журнала: 2024, Номер unknown, С. 112624 - 112624

Опубликована: Дек. 1, 2024

Язык: Английский