发明名称 PROCESS FOR PREPARING A MIXTURE OF LACTIDE DERIVATIVES
摘要 <p>Preparing a mixture from [1,4]dioxane-2,5-dione compounds (Ia)-(Ic), comprises reacting alpha -hydroxycarboxylic acid compounds (IIa) and/or (IIb), complete stereoisomerically pure compound of (Ia)-(Ic) or a mixture of two or three compounds of (Ia)-(Ic) or an oligomer or polymer of hydroxycarboxylic acid compound (III), with a catalyst or a mixture of at least two catalysts. Preparation of a mixture from [1,4]dioxane-2,5-dione compounds of formulae (Ia)-(Ic), comprises reacting alpha -hydroxycarboxylic acid compounds of formulae (IIa) and/or (IIb), complete stereoisomerically pure compound of (Ia)-(Ic) or a mixture of two or three compounds of (Ia)-(Ic), or an oligomer or polymer of hydroxycarboxylic acid compound of formula (III), with a catalyst or a mixture of at least two catalyst. R : 1-6C-alkyl; and n : 1-50. [Image] [Image].</p>
申请公布号 HK1157785(A1) 申请公布日期 2015.12.24
申请号 HK20110112375 申请日期 2011.11.16
申请人 UHDE INVENTA-FISCHER GMBH 发明人 RAINER HAGEN;ADAM BASTIAAN VERWEIJ;UDO MUEHLBAUER;JOACHIM SCHULZE;WOLFGANG TIETZ;KLAUS-DIETER GOEHLER
分类号 C07D;C07B 主分类号 C07D
代理机构 代理人
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