Optically active compounds and intermediates thereof, and proces

Details Optically active compounds and intermediates thereof, and proces Optically active compounds and intermediates thereof, and proces

1991-02-20

1993-11-16

Dees, Jose G.

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

Organic compounds

Cyclohexadiene having atoms double bonded directly at the 1-...

552293, 552309, 549292, 549417, 560193, 560254, 568628, 568651, 568355, 568376, 568377, C07C 4606, C07C 49603

Patent

active

052625524

ABSTRACT:
An optically active (S)- or (R)-pentane compound of the general formula (11): ##STR1## wherein R.sub.11, R.sub.12 and R.sub.13 independently represent a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms, R.sub.14 represents a hydroxy, protected hydroxy or oxo group, if R.sub.14 is an oxo group, the ring denoting benzene in the above formula (11) is benzoquinone, R.sub.15 represents a hydrogen atom, hydroxy or acyloxy group, R.sub.16 represents a hydroxy or acyloxy group, and the chiral central carbon marked with a symbol * in said formula (11) alternatively has one of an R-configuration and an S-configuration, is disclosed. Further, intermediate products of the compound of the formula (11) are also disclosed. Still further, a process for manufacturing the above compounds is disclosed. The compound of the formula (11) is easily synthesized from an easily available optically active starting material.

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Takano et al., Tetrahedron Letters, 31(25), 3619-3622 (1990).
Takano et al., Heterocycles, 31(5), 917-921 (1990).
Cohen et al., J. Am. Chem. Soc., 101(22), 6710-6716 (1979).
Cohen et al., J. Org. Chem. 46(12), 2445-2450 (1981).

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