Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-04-23
1976-08-10
Rizzo, Nicholas S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2603433R, C07D26306
Patent
active
039741737
ABSTRACT:
Oxazolidines having the formula ##SPC1##
Wherein .about. indicates endo or exo attachment, but differing in their stereoisomeric configuration, are prepared by reaction of the isomers of a tricyclic lactone aldehyde of the formula ##SPC2##
Wherein .about. is as defined above, with d- or l-ephedrine; useful for separating optically active isomers of the aldehyde.
REFERENCES:
patent: 3711515 (1973-01-01), Kelly
Nielsen Morris L.
Rizzo Nicholas S.
The Upjohn Company
Vaughn Mary C.
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