Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1988-12-23
1991-01-08
Gray, Bruce
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
558406, 560 60, C07C 5948
Patent
active
049837664
ABSTRACT:
An aldehyde (R.sup.1 CHO) and optically active 3-hydroxybutyric acid (CH.sub.3 CH(OH)CH.sub.2 COOH) are reacted to form an optically active dioxanone. This dioxanone is reacted with a compound R.sup.2 --X to form an intermediate (R.sup.1 R.sup.2 CHOCH(CH.sub.3) CH.sub.2 COOH) which is then subjected to elimination to form an optically active secondary alcohol (R.sup.1 R.sup.2 CHOH) in good yield and purity.
REFERENCES:
patent: 4482571 (1984-11-01), Abraham
patent: 4812476 (1989-03-01), Imwinkelreid et al.
Imwinkelried Rene
Seebach Dieter
Gray Bruce
Imperial Chemical Industries plc
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