发明名称 |
Process for the preparation of 3-aryl-benzofuran-2-ones |
摘要 |
The instant invention discloses a process for the preparation of compounds of formula I wherein the general symbols are as defined in claim 1, which process comprises hydrolyzing a compound of formula V wherein the general symbols are as defined in claim 1, in an aqueous solvent in the presence of an acid. The compounds of the formula V are new and useful as stabilizers for protecting organic materials, in particular polymers and lubricants, against oxidative, thermal or light-induced degradation.
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申请公布号 |
US2002115855(A1) |
申请公布日期 |
2002.08.22 |
申请号 |
US20010899450 |
申请日期 |
2001.07.05 |
申请人 |
GERSTER MICHELE;DUBS PAUL |
发明人 |
GERSTER MICHELE;DUBS PAUL |
分类号 |
C07D307/82;C07D307/83;C07D405/06;C07D409/06;C08K5/1535;C08L101/00;C09K15/06;C09K15/18;C10M129/20;C10N30/00;C10N30/08;C10N30/10;C10N40/00;C10N40/04;C10N40/12;C10N40/25;C10N50/10;(IPC1-7):C07D475/00;C07D473/00;C0747/02 |
主分类号 |
C07D307/82 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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