Primary amino acid catalyzed asymmetric intramolecular Mannich reaction for the synthesis of 2-aryl-2,3-dihydro-4-quinolones
作者:Buddhadeb Mondal、Subhas Chandra Pan
DOI:10.1039/c4ob02146k
日期:——
Primary amino acids are found to be good enantioselective catalysts for the direct asymmetric Mannich reaction between 2-amino acetophenone and aldehydes. The 2-aryl-2,3-dihydro-4-quinoline products are obtained in moderate to good yields and good to high enantioselectivities with 10 mol% of the primary amino acid catalyst under mild reaction conditions.
发现伯氨基酸是2-氨基苯乙酮与醛之间直接不对称曼尼希反应的良好对映选择性催化剂。在温和的反应条件下,以10摩尔%的伯氨基酸催化剂以中等至良好的收率和良好至高的对映选择性获得2-芳基-2,3-二氢-4-喹啉产物。