Chemistry Letters p. 1013 - 1016 (1986)
Update date:2022-07-29
Topics:
Yamasaki, Noritsugu
Murakami, Masahiro
Mukaiyama, Teruaki
Tin(II) carboxylic thioester enolates, formed in situ from stannous 2-methyl-2-propanethiolate and ketenes, react with imines in the presence of stannous triflate to give the corresponding β-aminocarboxylic thioesters in an anti-selective manner.This method is successfully applied to a diastereoselective synthesis of a carbapenem antibiotic PS-5 intermediate.
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