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Acoplamiento reductor enantioselectivo de las iminas modeladas por diborón quiral

Mingkang Zhou¹, Kaidi Li¹, Dongping Chen¹

¹State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.

Journal of the American Chemical Society

|May 28, 2020

Resumen

Los investigadores desarrollaron un nuevo método para crear diaminas vicinales quirales utilizando síntesis asimétrica. Este proceso eficiente emplea plantillas quirales de diboron para el acoplamiento reductivo de iminas, ofreciendo una alta selectividad y condiciones suaves.

Área de la Ciencia:

Química orgánica
Síntesis asimétrica
Catálisis

Sus antecedentes:

Las diaminas vicinales quirales son bloques de construcción cruciales en los productos farmacéuticos y la ciencia de los materiales.
El desarrollo de métodos eficientes y selectivos para su síntesis sigue siendo un desafío importante en la química orgánica.

Objetivo del estudio:

Informar sobre un método general, práctico y altamente eficiente para la síntesis asimétrica de las diaminas quirales vicinales.
Demostrar la utilidad de los compuestos quirales de diboron como plantillas en reacciones de acoplamiento reductivo.

Principales métodos:

Síntesis asimétrica mediante el acoplamiento reductivo de iminas.
Utilizando compuestos quirales de diboron como plantillas.
Utilizando condiciones de reacción suaves y materiales de partida fácilmente disponibles.

Principales resultados:

Se logró una amplia gama de diaminas vicinales quirales con alta enantioselectividad y estereospecificidad.
Demostró un amplio alcance de sustrato para el protocolo desarrollado.
El método pone de relieve la versatilidad del reordenamiento sigmatrópico [3,3] habilitado por diboron.

Conclusiones:

El método descrito ofrece un enfoque general y eficiente para sintetizar valiosas diaminas quirales vicinales.
Este trabajo expande la utilidad sintética de la química del diboro en la catálisis asimétrica.

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