Asymmetric [3+2]-cyclization of α-imino amide surrogates to construct 3,4-diaminopyrrolidine-2,5-diones

Chem Commun (Camb). 2023 Jun 29;59(53):8250-8253. doi: 10.1039/d3cc01203d.

Abstract

Using newly designed α-imino amide surrogates and azlactones as amphiphilic reactants, catalyzed by a chiral bifunctional guanidine, the construction of chiral 3,4-diaminopyrrolidine-2,5-diones and their derivatives was realized via formal [3+2]-cyclization. The role of guanidine as a multiple hydrogen bond donor was demonstrated by DFT calculations.

MeSH terms

  • Amides* / chemistry
  • Catalysis
  • Cyclization
  • Guanidine / chemistry
  • Stereoisomerism

Substances

  • Amides
  • Guanidine