Wieland–Miescher ketone (5) is presented. We show that l-proline as well as a number of other chiral amines can act as catalysts of both steps of the Robinson annulation reaction. Other chiral amines are identified as catalysts of Michael and aldol addition reactions.
介绍了Wieland-Miescher酮的单步对映选择性合成(5)。我们表明,脯
氨酸以及许多其他手性胺可以充当鲁宾逊环化反应的两个步骤的催化剂。其他手性胺被鉴定为迈克尔和羟醛加成反应的催化剂。