Process for converting inactive-type stereoisomers in synthesize

Details Process for converting inactive-type stereoisomers in synthesize Process for converting inactive-type stereoisomers in synthesize

1984-12-26

1986-09-02

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4579

Patent

active

046097643

ABSTRACT:
Stereoisomers having no cigarette beetle's sex pheromone activity contained in synthesized 4,6-dimethyl-7-hydroxy-nonan-3-one which is an equilibrium mixture of eight stereoisomers may be converted into stereoisomer having said sex pheromone activity by repeating column chromatographic fractionation, epimerization with an acidic or a basic catalyzer and/or racemization with a basic catalyzer in relation to said 3-one compound.

REFERENCES:
Ono et al., Agric. Biol. Chem., vol. 44(9), pp. 2259-2260 (1980).
Chuman et al., Agric. Biol. Chem., vol. 43(9), p. 2506 (1979).
Mori et al., Tetrahedron, vol. 38(24), pp. 3705-3711 (1982).

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