Nature Communications (Oct 2021)

Conformer-specific polar cycloaddition of dibromobutadiene with trapped propene ions

  • Ardita Kilaj,
  • Jia Wang,
  • Patrik Straňák,
  • Max Schwilk,
  • Uxía Rivero,
  • Lei Xu,
  • O. Anatole von Lilienfeld,
  • Jochen Küpper,
  • Stefan Willitsch

DOI
https://doi.org/10.1038/s41467-021-26309-5
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 8

Abstract

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Identifying a concerted or stepwise mechanism in Diels–Alder reactions is experimentally challenging. Here the authors demonstrate the coexistence of both mechanisms in the reaction of 2,3-dibromobuta-1,3-diene with propene ions, using a conformationally controlled molecular beam reacting with trapped ions and ab initio computations