Journal of the Chemical Society. Chemical communications p. 2281 - 2282 (1994)
Update date:2022-08-02
Topics:
Tamai, Yasufumi
Yoshiwara, Hideki
Someya, Masahiro
Fukumoto, Jun
Miyano, Sotaro
Asymmetric <2 + 2> cycloaddition of ketene with the aldehydes 1a-g, catalysed by 10 molpercent of C2-symmetric bissulfonamide 2a-c-R3Al complexes afforded optically active 4-substituted oxetan-2-ones 3a-g in up to 74percent enantiomeric excess.
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