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    • 5. 发明申请
      US20100113725A1 CATALYTIC PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF N-HYDROXYALKYLATED LACTAMS 有权
    • CATALYTIC PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF N-HYDROXYALKYLATED LACTAMS
    • US20100113725A1
    • 2010-05-06
    • US12524587
    • 2008-02-11
    • Hermann Bergmann , Frank Hoefer , Maximilian Angel
    • Hermann Bergmann , Frank Hoefer , Maximilian Angel
    • C08F4/10 , C08F4/50 , C08F4/46 , C08F4/08
    • C07D207/273
    • A process for preparing (meth)acrylic esters (F) of N-hydroxyalkylated lactams, in which cyclic N-hydroxyalkylated lactams (L) in which R1 is C1-C5-alkylene, or C2-C20-alkylene interrupted by one or more oxygen and/or sulfur atoms and/or one or more substituted or unsubstituted imino groups and/or by one or more cycloalkyl, —(CO)—, —O(CO)O—, —(NH)(CO)O—, —O(CO)(NH)—, —O(CO)— or —(CO)O— groups, where the radicals mentioned may each be substituted by aryl, alkyl, aryloxy, alkyloxy, heteroatoms and/or heterocycles, with the proviso that R1 must not have any atom other than a carbon atom directly adjacent to the lactam carbonyl group, R2 is C1-C20-alkylene, C5-C12-cycloalkylene, C6-C12-arylene, or C2-C20-alkylene interrupted by one or more oxygen and/or sulfur atoms and/or one or more substituted or unsubstituted imino groups and/or by one or more cycloalkyl, —(CO)—, —O(CO)O—, —(NH)(CO)O—, —O(CO)(NH)—, —O(CO)— or —(CO)O— groups, where the radicals mentioned may each be substituted by aryl, alkyl, aryloxy, alkyloxy, heteroatoms and/or heterocycles, or R2—OH is a group of the formula —[Xi]k—H, k is from 1 to 50 and Xi, for each i=1 to k, may each independently be selected from the group of —CH2—CH2—O—, —CH2—CH2—N(H)—, —CH2—CH2—CH2—N(H)—, —CH2—CH(NH2)—, —CH2—CH(NHCHO)—, —CH2—CH(CH3)—O—, —CH(CH3)—CH2—O—, —CH2—C(CH3)2—O—, —C(CH3)2—CH2—O—, —CH2—CH2—CH2—O—, —CH2—CH2—CH2—CH2—O—, —CH2—CHVin-O——CHVin-CH2—O—, —CH2—CHPh-O— and —CHPh-CH2—O—, in which Ph is phenyl and Vin is vinyl, in the presence of at least one catalyst (K) selected from the group consisting of alkali metal hydroxides, alkaline earth metal hydroxides and metal acetylacetonates, is esterified with (meth)acrylic acid (S) or transesterified with at least one (meth)acrylic ester (D).
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