Bisprolinediamides with the Binaphthyl Backbone as Organocatalysts for the Direct Asymmetric Aldol Reaction
作者:Dorota Gryko、Bartomiej Kowalczyk、Łukasz Zawadzki
DOI:10.1055/s-2006-939701
日期:——
diamines including l,l'-binaphthyl-2,2'-diamine, were prepared in good yields. They were evaluated as catalysts for the direct asymmetric aldol reaction. The presence of the binaphthyl and proline moieties in one molecule has beneficial effects on the stereochemical outcome of the reaction of acetone with a model aldehyde. Furthermore, it was shown that dioxane as the solvent significantly improved both
以良好的收率制备了一系列衍生自各种芳族二胺(包括 l,l'-binaphthyl-2,2'-diamine)的 L-脯氨酸酰胺。它们被评估为直接不对称醛醇反应的催化剂。一个分子中联萘和脯氨酸部分的存在对丙酮与模型醛反应的立体化学结果具有有益影响。此外,表明二恶烷作为溶剂显着提高了产率和对映选择性,分别达到 89% 和 86%。