Enantioenriched α-substituted glutamates/pyroglutamates via enantioselective cyclopropenimine-catalyzed Michael addition of amino ester imines
A procedure for the enantioselective synthesis of α-substituted glutamates and pyroglutamates via a cyclopropenimine-catalyzed Michael addition of amino ester imines is described. Enantioselectivities of up to 94% have been achieved, and a variety of functional groups were found to be compatible. Th...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Beilstein-Institut
2021-08-01
|
Series: | Beilstein Journal of Organic Chemistry |
Subjects: | |
Online Access: | https://doi.org/10.3762/bjoc.17.134 |