Abstract
The stereochemical course in the addition of lithiated benzylcyanide and propionitrile to aromatic Schiff bases, as well as of the subsequent alkylation reaction has been investigated. The stereochemical ratios in the condensation reaction are proved to result from the intermediacy of a prochiral carbanionic intermediate, produced by a fast proton shift in the initially formed azanion. Subsequent one-pot alkylation reaction with a variety of electrophiles leads in high to moderate yields to diastereoselective formation of a second carbon–carbon bond at the same carbon center. Diastereoselectivity in alkylation, which varies from outstanding to high and poor is rationalized in terms of open-chain, product-like or reactant-like transition state models.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
