作者:Katie M. Cergol、Peter Turner、Mark J. Coster
DOI:10.1016/j.tetlet.2005.01.011
日期:2005.2
examples of the directed, boron-mediated aldol reaction between different ketones are presented. Transformation of a variety of ketones to their corresponding boron enolates with Chx2BCl/Et3N, followed by reaction with acceptor ketones in diethyl ether, and oxidation of the resultant boron aldolate (H2O2, MeOH/pH 7 buffer), provided the aldol addition products. The reaction was most facile when cyclic
给出了不同酮之间直接的硼介导的醇醛缩合反应的第一个例子。用Chx 2 BCl / Et 3 N将各种酮转化为其相应的硼烯酸酯,然后在乙醚中与受体酮反应,然后氧化生成的醛缩硼酸硼(H 2 O 2,MeOH / pH 7缓冲液),提供了醛醇缩合剂产品。当使用环状酮时,该反应最容易,烯醇硼与环己酮作为受体的反应获得的产率最高。