| Literature DB >> 27681860 |
Shi Chen1, Mukulesh Mondal1, Ahmad A Ibrahim1, Kraig A Wheeler2, Nessan J Kerrigan1.
Abstract
A highly diastereoselective approach to dipropionate derivatives through Pd/C-catalyzed hydrogenation of enantioenriched E-ketene heterodimers is described. Catalytic hydrogenation of the E-isomer of ketene heterodimer β-lactones (12 examples) provides access to syn,anti-β-lactones (dipropionate derivatives) bearing up to three stereogenic centers (dr up to 49:1), and with excellent transfer of chirality (ee up to >99%).Entities:
Keywords: asymmetric synthesis; catalytic hydrogenation; diastereoselectivity; ketene heterodimer; β-lactone
Year: 2016 PMID: 27681860 PMCID: PMC5035679 DOI: 10.1055/s-0035-1561958
Source DB: PubMed Journal: Synthesis (Stuttg) ISSN: 0039-7881 Impact factor: 3.157