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Barreras bidimensionales para la detección de desplazamientos conformacionales en macrociclos

Shinya Kobori¹, Sungjoon Huh¹, Solomon D Appavoo¹

¹Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario Canada, M5S 3H6.

Journal of the American Chemical Society

|March 23, 2021

Resumen

Los investigadores desarrollaron barreras compuestas sintonizables en columnas vertebrales macrocíclicas utilizando reordenamientos heterocíclicos. Este método controla la conformación y ofrece ideas para nuevos elementos de control conformacional.

Área de la Ciencia:

Química orgánica
Química supramolecular
Síntesis Química

Sus antecedentes:

Los compuestos macrocíclicos son cruciales en varias aplicaciones químicas y biológicas.
El control de la conformación macrocíclica es esencial para su función.
Los reordenamientos heterocíclicos ofrecen nuevas estrategias para el diseño molecular.

Objetivo del estudio:

Desarrollar y utilizar barreras bidimensionales compuestas dentro de las columnas vertebrales macrocíclicas.
Investigar la influencia de la translocación heterocíclica en la conformación macrocíclica.
Explorar la reacción de Boulton-Katritzky como un método para crear barreras compuestas.

Principales métodos:

Síntesis de barreras bidimensionales compuestas en sistemas macrocíclicos.
Estudios cinéticos mediante espectroscopia de resonancia magnética nuclear de protones (1H NMR).
Simulaciones de dinámica molecular y análisis de RMN.

Principales resultados:

La reacción de Boulton-Katritzky fue empleada para crear barreras compuestas sintonizables.
Se encontró que el movimiento del átomo en el plano era rápido en anillos de 17 a 19 miembros, y más lento en anillos de 16 miembros.
Las simulaciones de RMN y MD confirmaron la persistencia de raros motivos de cisamida durante los cambios conformacionales.

Conclusiones:

Las reacciones de reordenamiento heterocíclico controlan efectivamente las columnas vertebrales macrocíclicas.
El estudio proporciona información fundamental sobre los elementos de control de la conformación.
Los hallazgos pueden guiar el desarrollo de nuevos sistemas moleculares con conformaciones a medida.

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