Catalytic Asymmetric Synthesis of Dihydroquinazolinones from Imines and 2-Aminobenzamides
作者:Dao-Juan Cheng、Yu Tian、Shi-Kai Tian
DOI:10.1002/adsc.201100849
日期:2012.4.16
An unprecedented catalytic asymmetric synthesis of aminal‐containing heterocyclic compounds has been developed from imines and tethered nitrogen/nitrogen nucleophiles. In the presence of 10 mol% of a commercially available chiral phosphoric acid, a range of aromatic, α,β‐unsaturated, and aliphatic imines react with 2‐aminobenzamides to give dihydroquinazolinones in good to excellent yields and ee.
利用亚胺和束缚的氮/氮亲核试剂,开发了前所未有的催化非对称合成含氨基的杂环化合物的方法。在10 mol%的手性磷酸存在下,一系列芳族,α,β-不饱和和脂族亚胺与2-氨基苯甲酰胺反应生成二氢喹唑啉酮,收率和收率良好。通过与手性磷酸和2-氨基苯甲酰胺的非键相互作用,亚胺N-取代基会极大地影响对映选择性。