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高分子负载的羟基脯氨酸催化丙酮与邻-和对-硝基苯甲醛的不对称直接Aldol加成反应(英文)
Polymer-Supported Hydroxyproline as a Catalyst for Direct Asymmetric Aldol Addition of Acetone to o-And p-Nitrobenzaldehyde
【摘要】 以4(R)-羟基脯氨酸为原料,合成了高分子负载的脯氨酸衍生物,并用来催化丙酮对邻-和对-硝基苯甲醛的直接不对称Aldol加成反应,ee值最高可达80%,催化剂至少可以重复利用三次.
【Abstract】 Starting from (4R)-hydroxy-L-proline, a polymer-supported proline derivative has been prepared and conducted as a catalyst in the direct asymmetric aldol addition of acetone to o- and p- nitrobenzaldehyde. The desired aldol adducts were obtained in good yields with ee’s up to 80%, and the catalyst can be reused for at least three times.
【关键词】 PMBHA树脂;
手性催化剂;
羟醛缩合反应;
羟基脯氨酸;
回收;
【Key words】 PMBHA resin; Chiral catalyst; Aldol reaction; Hydroxyproline; Recycle;
【Key words】 PMBHA resin; Chiral catalyst; Aldol reaction; Hydroxyproline; Recycle;
【基金】 TheprojectwassupportedbytheKeyLaboratoryofOrganicSynthesisofJiangsuProvince(JSK015).
- 【文献出处】 分子催化 ,Journal of Molecular Catalysis , 编辑部邮箱 ,2005年02期
- 【分类号】O643.32
- 【被引频次】5
- 【下载频次】285