Document Detail

Catalytic α-Allylation of Unprotected Amino Acid Esters.
MedLine Citation:
PMID:  22486157     Owner:  NLM     Status:  Publisher    
Catalytic α-allylation of unprotected amino acid esters to produce α-quaternary α-allyl amino acid esters is reported. Catalytic loadings of picolinaldehyde and Ni(II) salts induce preferential reactivity at the enolizable α-carbon of amino acid esters over the free nitrogen with electrophilic palladium π-allyl complexes. Fourteen examples are given. Additionally, the use of chiral ligands to access enantioenriched α-quaternary amino acid esters from racemic precursors is demonstrated by the enantioselective synthesis of α-allyl phenylalanine methyl ester from racemic phenylalanine methyl ester.
Ping Fang; Mani Raj Chaulagain; Zachary D Aron
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-9
Journal Detail:
Title:  Organic letters     Volume:  -     ISSN:  1523-7052     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100890393     Medline TA:  Org Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States.
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