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Beilstein J. Org. Chem. 2025, 21, 1719–1729, doi:10.3762/bjoc.21.134
Graphical Abstract
Figure 1: a–d) Selected structures of previously reported BINOL-based crown ether macrocycles; e) previous sy...
Figure 2: Optimized synthetic routes towards 3,3'-substituted BINOL crown ethers (this work).
Figure 3: Synthetic routes towards macrocycles featuring one BINOL unit. a) Two-fold Suzuki coupling and b) t...
Figure 4: Molecular structure of macrocycle (R)-Me-M16 in the solid state (hydrogen atoms are omitted for cla...
Figure 5: Initially attempted route towards bis-BINOL macrocycles based on precursors Me-36 or Me-46. Conditi...
Figure 6: Synthetic route towards macrocycles featuring two BINOL units linked via hexaethylene glycol spacer...
Figure 7: Synthetic route towards macrocycles featuring two BINOL units linked via diethylene glycol spacers....
Figure 8: 1H NMR spectra of a) (S,S)-H-M22, b) (S,S)-iPr-M22, c) (S,S)-HiPr-M22, and d) (R,S)-HiPr-M22 (all: ...