Stereoselective Synthesis of Polysubstituted Dihydropyrroles via 1,5-Addition and N-1,4-Addition Cascade

Chemistry. 2024 Jul 5;30(38):e202401350. doi: 10.1002/chem.202401350. Epub 2024 Jun 12.

Abstract

An unprecedented 1,5-addition/N-1,4-addition cascade reaction is established via palladium hydride catalysis. A variety of polysubstituted dihydropyrrole skeletons are constructed in high yield and with exclusively >20 : 1 diastereoselectivity. An enantioselective protocol of this design is also developed to provide a novel access to enantioenriched dihydropyrroles.

Keywords: 1,5-addition; N-1,4-addition; enantioselective; palladium hydride; stereoselective.