Effective method for the asymmetric synthesis of bis-β-lactams by the cycloaddition of azidoketen to benzylideneamines bearing a chiral β-lactam backbone
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 7,p. 344-346
- https://doi.org/10.1039/c39810000344
Abstract
Extremely high stereoselectivity was observed in the asymmetric cycloaddition of azidoketen to 1-[(S)-1-t-butoxycarbonylethyl]-3-benzylideneamino-4-phenyl-azetidin-2-ones, which gave rise to the formation of optically pure bis-β-lactams.Keywords
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