Abstract

Chiral arylene-ethynylene macrocycles (AEMs) were synthesized via alkyne metathesis-mediated depolymerization of BINOL-based polymers. Homochiral dimers are selectively obtained from metathesis of heterochiral polymers. Thermodynamic analysis and computational modeling suggests the homochiral self-sorting to be entropy-driven due to the greater symmetry of the homochiral dimers over the heterochiral dimer. This symmetry-controlled reaction is a novel approach to achieving high selectivity in dynamic covalent macrocycle synthesis. Importantly, the result describes a new paradigm in dynamic covalent chemistry that will enable efficient synthesis of new chiral architectures.

Original languageEnglish (US)
Pages (from-to)81-85
Number of pages5
JournalChemical Science
Volume5
Issue number1
DOIs
StatePublished - Jan 1 2014

ASJC Scopus subject areas

  • Chemistry(all)

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