Process for preparing 1,2,4-butanetriol
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United States of America Patent
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Sep 27, 2005
Grant Date -
Mar 6, 2003
app pub date -
Jul 8, 2002
filing date -
Mar 3, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An object of the present invention is to provide a process wherein 1,2,4-butanetriol can be obtained safely, easily and inexpensively without causing problems concerning wastewater. A malic diester, 3-hydroxy-γ-butyrolactone or 3,4-dihydroxybutanoate represented by the following formulae (I), or a mixture thereof is reduced with sodium borohydride in an organic solvent to give 1,2,4-butanetriol represented by the following formula (II). When an optically active substance is used as the above-mentioned starting compound, substantially no recemization occurs during the reduction, and optically active 1,2,4-butanetriol is obtained. ##STR1##
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