Abstract
New chiral atropisomeric biphenyl diols 3, 4 and 6 containing additional peripheral chiral centers with different steric bulkiness and/or electronic properties were synthesized. The X-ray crystal structure of 3 shows the formation of a supramolecular structure whereas that of 6, containing additional CF3 substituents, shows the formation of a monomeric structure. Diols 1-6 were found to be active organocatalysts in oxo-Diels-Alder reactions in which 2 recorded a 72% ee with trimethylacetaldehyde as a substrate.
Original language | English |
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Pages (from-to) | 955-962 |
Number of pages | 8 |
Journal | Beilstein Journal of Organic Chemistry |
Volume | 15 |
DOIs | |
Publication status | Published - 2019 |
Keywords
- Asymmetric organocatalysis
- Axial chirality
- Biaryls
- Hydrogen bond
- Oxo-Diels-Alder reaction
ASJC Scopus subject areas
- Organic Chemistry