Chemistry Letters p. 49 - 50 (1995)
Update date:2022-09-26
Topics:
Kanemasa, Shuji
Tsuruoka, Takashi
A Lewis acid promotes the E- to Z- isomerization of carbonyl conjugated nitrones.The MgBr2*Et2O-catalyzed cycloadditions to allylic alcohols lead to the exclusive formation of the exostereoisomers of isoxazolidine-5-methanols.Participation of the Z-nitrone/MgBr2 complexes is suggested.
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