Sequential Suzuki/Asymmetric Aldol and Suzuki/Knoevenagel Reactions Under Aqueous Conditions
作者:Michelangelo Gruttadauria、Lucia Anna Bivona、Paolo Lo Meo、Serena Riela、Renato Noto
DOI:10.1002/ejoc.201200092
日期:2012.5
describe for the first time a sequential Suzuki/asymmetric aldol reaction. Such sequential approach was achieved through the combined use of an ionic liquid supported palladium catalyst and the organocatalyst trans-4-(2,2-diphenylacetoxy)proline. Suzuki and asymmetric aldol reactions were performed under aqueous conditions. The use of a palladium catalyst under basic conditions allowed also the first example
在这里,我们首次描述了连续的铃木/不对称醛醇反应。这种顺序方法是通过结合使用离子液体负载的钯催化剂和有机催化剂反式-4-(2,2-二苯基乙酰氧基)脯氨酸来实现的。Suzuki 和不对称醛醇反应在水性条件下进行。在碱性条件下使用钯催化剂也允许顺序 Suzuki/Knoevenagel 反应的第一个例子。反应在水性条件下进行,产物以良好至高产率分离,在 Suzuki/醛醇反应的情况下,非对映选择性高达 91:9,对映选择性高达至少 99%。