Monofunctional primary amine: A new class of organocatalyst for asymmetric Aldol reaction
作者:KHIANGTE VANLALDINPUIA、PORAG BORA、GHANASHYAM BEZ
DOI:10.1007/s12039-017-1237-y
日期:2017.3
organocatalysts involving a primary amine as the only functional group is developed for catalytic asymmetric aldol reaction of cyclohexanone/cyclopentanone with various aryl aldehydes in the presence of benzoic acid as an additive at −10∘C. In an unexpected observation, the primary amine catalyzed reactions gave excellent yield and good to excellent stereoselectivity, while secondary amines were found to have
在-10 ° C的条件下,在苯甲酸作为添加剂存在的情况下,开发了一种新型的有机催化剂,其中以伯胺为唯一的官能团,用于环己酮/环戊酮与各种芳基醛的催化不对称醛醇缩合反应。伯胺催化的反应具有出色的收率和良好的立体选择性,而在相似的反应条件下,仲胺的反应性很小或没有。 一类新的与伯胺作为唯一的催化活性官能团aminocatalysts的混合物用于与苯甲酸的存在作为添加剂在-10各种芳基醛的环己酮/环戊酮的不对称催化醛醇缩合反应开发ö整齐的条件下下进行。