Asymmetric synthesis of di- and trisubstituted pyrrolidinones via zirconium-mediated intramolecular coupling of N-3-alkenyl carbamates-Science-Chemical Encyclopedia-lookchem

Asymmetric synthesis of di- and trisubstituted pyrrolidinones via zirconium-mediated intramolecular coupling of N-3-alkenyl carbamates
Add time:07/13/2019 Source:sciencedirect.com

N-3-Alkenyl carbamates, which are readily available in enantiomerically pure form, undergo a stereoselective intramolecular coupling under the effect of a Cp2ZrCl2/2n-BuLi reagent. The influence of the carbamate structure on the stereoselectivity was tested. The reaction gives an easy access to various di- and trisubstituted enantiopure pyrrolidinones.

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