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Wiley, Chirality, 4(35), p. 227-246, 2023

DOI: 10.1002/chir.23537

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Synthesis, structural characterization, and chiroptical properties of planarly and axially chiral boranils

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Abstract2‐Amino[2.2]paracyclophane reacts with salicylaldehyde or 2‐hydroxyacetophenone to yield imines that then give access to a new series of boranils (8b–d) upon complexation with BF2. These novel boron‐containing compounds display both planar and axial chiralities and were examined experimentally and computationally. In particular, their photophysical and chiroptical properties were studied and compared to newly prepared, simpler boranils (9a–d) exhibiting axial chirality only. Less sophisticated chiral architectures were shown to demonstrate overall stronger circularly polarized luminescence (CPL) activity.