Method for producing cyclopent-4-ene-1,3-diol or cyclopent-4-ene-1,3-diol derivatives
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United States of America Patent
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Issued Date -
Jul 15, 2010
app pub date -
Jun 5, 2008
filing date -
Jun 13, 2007
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Abandoned
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Abstract
The invention relates to a method for producing cis-cyclopent-4-ene-1,3-diol and cis-cyclopent-4-ene-1,3-dialkanoates by selective cis-1,2-reduction of 4-hydroxycyclopent-2-enone by means of a hydroboron, in the presence of substoichiometric quantities of a trivalent rare earth metal compound, to form cyclopent-4-ene-1,3-diol which can then be optionally reacted with an acylation agent to form cis-cyclopent-4-ene-1,3-dialkanoates, in order to simplify the reprocessing and without intermediate isolation.
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