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Synthesis of 1,3-cis-disubstituted sterically encumbered imidazolidinone organocatalysts

A variety of novel imidazolidinone-based organocatalysts with bulky substituents were synthesized under mild reaction conditions starting from easily accessible substrates. Different natural and unnatural amino acid methyl amides were cyclized with aromatic carbaldehydes to yield two diastereomeric...

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Detalles Bibliográficos
Autores principales: Wallbaum, Jan, Werz, Daniel B
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5727825/
https://www.ncbi.nlm.nih.gov/pubmed/29259667
http://dx.doi.org/10.3762/bjoc.13.254
Descripción
Sumario:A variety of novel imidazolidinone-based organocatalysts with bulky substituents were synthesized under mild reaction conditions starting from easily accessible substrates. Different natural and unnatural amino acid methyl amides were cyclized with aromatic carbaldehydes to yield two diastereomeric MacMillan-type catalysts. Special emphasis was put on bulky residues such as mesityl and pyrene moieties.