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Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
Cicloligómeros direccionales a través de la metátesis de alquinos
Scott W Sisco1, Jeffrey S Moore
1Department of Chemistry, University of Illinois at Urbana-Champaign, 61801, United States.
Journal of the American Chemical Society
|May 19, 2012
Resumen
Los investigadores sintetizaron oligómeros macrocíclicos utilizando la metátesis de alquinos. El bloque de construcción del edificio.
Área de la Ciencia:
- Química de Polímeros La Química de Polímeros es la química de los polímeros.
- Síntesis orgánica La síntesis orgánica.
- Química supramolecular de las moléculas.
Sus antecedentes:
- Los compuestos macrocíclicos son importantes en varios campos.
- La síntesis de macrociclos con estructuras controladas puede ser un reto.
- La metátesis de alquinos es una herramienta poderosa para la formación de enlaces carbono-carbono.
Objetivo del estudio:
- Investigar la influencia de la forma de los bloques de construcción en los resultados de la macrociclado.
- Para determinar si la uniformidad direccional en los productos macrocíclicos es alcanzable.
- Explorar el uso de la metátesis de alquinos en la síntesis de macrociclos definidos direccionalmente.
Principales métodos:
- Síntesis de dos poliésteres isoméricos de arileno y etileno.
- Reacciones de despolimerización-macrociclado.
- Análisis de la distribución del producto utilizando técnicas analíticas.
Principales resultados:
- La forma del bloque de construcción tiene un impacto significativo en la distribución del producto.
- Un bloque de construcción isomérico produjo macrociclos direccionalmente uniformes.
- El otro bloque de construcción isomérico dio como resultado productos macrocíclicos mezclados.
Conclusiones:
- La geometría de los bloques de construcción es crucial para el control de la macrociclización.
- La metátesis de alquinos se puede utilizar para sintetizar macrociclos direccionalmente uniformes.
- Comprender el panorama energético de la macrociclización es clave para el diseño racional.
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