Abstract
A novel synthetic approach to racemic α-substituted α-amino acids is described. The key intermediates of this methodology are highly electrophilic iminium ions, bearing carbonyl substituents at both the iminium carbon and nitrogen atom. The preparation of precursors 8, 10a-c, and 12 includes electrochemical oxidation techniques according to literature pressures. When an α-methyl precursor (8 or 10a) was used, reactions with sylsilanes and silyl enol ethers led to the desired products, but elimination to dehydroalanine derivatives appeared to be an important side reaction. A major improvement in the yields of the desired products could be effected by using longer reaction times
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.
