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

Chem Commun (Camb)

Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.

Published: June 2023

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 formal [3+2]-cyclization. The role of guanidine as a multiple hydrogen bond donor was demonstrated by DFT calculations.

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http://dx.doi.org/10.1039/d3cc01203dDOI Listing

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