Optically active pentane derivatives and intermediates thereof,

Details Optically active pentane derivatives and intermediates thereof, Optically active pentane derivatives and intermediates thereof,

1992-04-30

1993-09-07

Evans, Joseph E.

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

Organic compounds

Oxygen containing

549518, C07C 2936, C07C 33042

Patent

active

052430960

ABSTRACT:
An optically active pentane compound of the general formula (I): ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, R.sub.2 represents a lower alkoxycarbonyl group having an alkoxy moiety of 1 to 4 carbon atoms, or a straight-chain or branched alkyl group having 1 to 7 carbon atoms which is unsubstituted or substituted with a hydroxy or protected hydroxy group, A represents a halogen atom, hydroxy, protected hydroxy, or ethynyl group, or a group of the formula ##STR2## B represents a hydrogen atom, hydroxy, protected hydroxy or acyloxy group, D represents a hydrogen atom, or A and B together can form an acetal or epoxy group, A and D together can form an ethylidene group, and B and D together can form a carbon-carbon direct bond, and the chiral central carbon atoms marked with symbols *, # and .thrfore. in said formula (I) alternatively have one of an R-configuration and an S-configuration Further, intermediates thereof, and a process for manufacturing the above compound are also disclosed

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1984-1985 Aldrich Catalog/Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee, Wisconsin, 1984, pp. 594, 596.

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