Ureidopeptide‐Based Brønsted Bases: Design, Synthesis and Application to the Catalytic Enantioselective Synthesis of β‐Amino Nitriles from (Arylsulfonyl)acetonitriles
作者:Saioa Diosdado、Rosa López、Claudio Palomo
DOI:10.1002/chem.201304877
日期:2014.5.19
preparation of β‐amino nitriles. We present a highly efficient organocatalytic methodology for the stereoselective synthesis of β‐amino nitriles, in which the key to success is the use of ureidopeptide‐based Brønsted base catalysts in combination with (arylsulfonyl)acetonitriles as synthetic equivalents of the acetonitrile anion. The method gives access to a variety of β‐amino nitriles with good yields
在亚胺上添加氰基烷基部分是制备β-氨基腈的一种非常有吸引力的方法。我们为立体选择性合成β-氨基腈提供了一种高效的有机催化方法,其中成功的关键是将基于尿素肽的布朗斯台德碱催化剂与(芳基磺酰基)乙腈结合使用作为乙腈阴离子的合成当量。该方法使人们能够以良好的收率和出色的对映选择性获得各种β-氨基腈,并拓宽了可用于合成的立体选择性曼尼希型方法。