Journal of the American Chemical Society p. 1571 - 1572 (1994)
Update date:2022-08-17
Topics:
Sasai
Arai
Shibasaki
In this communication, we report a new lithium-free lanthanum-BINOL complex, which is quite effective in catalytic asymmetric Michael reactions. We have succeeded in developing effective asymmetric base catalysts, in particular, asymmetric ester enolate catalysts forasymmetric Michael reactions. Two asymmetric lanthanum complexes are now available, namely, BINOL-lanthanum-lithium complex and the new lithium-free lanthanum-BINOL complex. The two complexes complement each other in their ability to catalyze asymmetric nitroaldol and asymmetric Michael reactions.
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