Department of Chemistry, School of Science, The University of Tokyo, Hongo, Tokyo 113-0033.
Org Biomol Chem. 2012 Aug 14;10(30):5750-2. doi: 10.1039/c2ob25522g. Epub 2012 Apr 17.
A catalytic Mannich reaction of a simple ester with no activating functionality at the α-position via a product-base mechanism was reported. The desired Mannich adducts were obtained in high yields using a catalytic amount of KH. This is a rare example of a Brønsted base-catalyzed Mannich reaction of unactivated esters as substrates.
报道了一种通过产物碱机理,在α-位没有活化功能的简单酯的催化曼尼希反应。使用催化量的 KH 可以高收率得到所需的曼尼希加成物。这是伯明斯特碱催化未活化酯作为底物的曼尼希反应的罕见实例。