Synthesis, resolution, and chiroptical properties of hemicryptophane cage controlling the chirality of propeller arrangement of a C3 triamide unit.

Synthesis, resolution, and chiroptical properties of hemicryptophane cage controlling the chirality of propeller arrangement of a C3 triamide unit.
Chirality. 2019 Sep 02;:
Authors: Long A, Jean M, Albalat M, Vanthuyne N, Giorgi M, Górecki M, Dutasta JP, Martinez A
Abstract
The five-steps synthesis of a hemicryptophane cage combining a benzene-1,3,5-tricarboxamide unit and a cyclotriveratrylene (CTV) moiety is described. Chiral high-performance liquid chromatography (HPLC) was used to resolve the racemic mixture. The absolute configuration of the isolated enantiomers was assigned by comparison of the experimental electronic circular dichroism (ECD) spectra with the calculated ones. X-ray molecular structures reveal that the capped benzene-1,3,5-tricarboxamide unit adopts a structurally chiral conformation in solid state: the chirality of CTV moiety controls the Λ or Δ orientation of the three amides.
PMID: 31476080 [PubMed - as supplied by publisher]

Source: Chirality - September 1, 2019 Category: Molecular Biology Authors: Long A, Jean M, Albalat M, Vanthuyne N, Giorgi M, Górecki M, Dutasta JP, Martinez A Tags: Chirality Source Type: research