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Improved Access to Chiral Tetranaphthoazepinium-Based Organocatalysts Using Aqueous Ammonia as Nitrogen Source
The class of 3,3′-diaryl substituted tetranaphthobisazepinium bromides has found wide application as highly efficient C(2)-symmetrical phase-transfer catalysts (PTCs, Maruoka type catalysts). Unfortunately, the synthesis requires a large number of steps and hampers the build-up of catalyst libraries...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
MDPI
2019
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864439/ https://www.ncbi.nlm.nih.gov/pubmed/31731415 http://dx.doi.org/10.3390/molecules24213844 |