REMOVING IMPURITY OF 3-(2'-ACETOXYETHYL)-DIHYDRO-2(3H) FURANONE

    公开(公告)号:JP2000154183A

    公开(公告)日:2000-06-06

    申请号:JP29724899

    申请日:1999-09-10

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for removing impurities from 3-(2'-acetoxyethyl)- dihydroxyethyl)dihydro-2(3H)furanone. SOLUTION: In this method, 3-(2'-hydroxyethyl)dihydro-2(3H)furanone including impurities is subjected to plural distillations or purifications and high boiling point impurities are removed, then a product taken out from the top part is subjected to at least other one process, thus a low boiling point component and a middle boiling point component are removed from the top part to obtain pure 3-(2'-hydroxyethyl)dihydro-2(3H)furanone (I) as a column bottom product.

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