Process for the stereoselective preparation of a hetero-bicyclic

Details Process for the stereoselective preparation of a hetero-bicyclic Process for the stereoselective preparation of a hetero-bicyclic

1997-01-22

1999-09-07

Kight, John

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

Organic compounds

Chalcogen in the nitrogen containing substituent

549366, 549439, C07D26536, C07D31914, C07D31744

Patent

active

059489090

ABSTRACT:
The invention relates to a method for the stereoselective preparation of a hetero-bicyclic alcohol enantiomer, characterized in that a substantially pure enantiomer of the general formula ##STR1## is prepared from a compound of the general formula ##STR2## wherein the variable are as defined as in claim 1. The method comprises the following successive reaction steps:

REFERENCES:
Tetrahedron Letters, vol. 29, No. 30, 1988, pp. 3671-3674, Short A. Enantioselective Synthesis of (R)-and (S)-2-Hydroxymethyl-1, 4-Benzodioxane, pp. 3671-3672.
Journal of Medicinal Chemistry, vol. 20, No. 7, 1977, Wendel L. Nelson et al: Absolute Configuration of Glycerol Derivatives, pp. 880-884.
Olcott, Chemistry and Industry, "Monoacetates of Hydroquinone and Catechol" vol. 58 pp. 392-393, 1936.
Chemical Abstracts vol. 100, No. 139,086, Schlager, "Ring Substituted Pyrogallol Derivatives" 1983.

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