Structural Study-Guided Development of Versatile Phase-Transfer Catalysts for Asymmetric Conjugate Additions of Cyanide
作者:Brian A. Provencher、Keith J. Bartelson、Yan Liu、Bruce M. Foxman、Li Deng
DOI:10.1002/anie.201105536
日期:2011.11.4
Unprecedented phase‐transfercatalysts for the first example of an organocatalytic asymmetric conjugate addition of cyanide with acetone cyanohydrin are reported (see scheme). Utilizing an accessible cupreidinium salt and a cyanation reagent suitable for industrial scale, this reaction holds significant promise for practical asymmetric synthesis. The catalysts were developed as a result of key structural
报道了用于氰化物与丙酮氰醇的有机催化不对称共轭加成的第一个例子的前所未有的相转移催化剂(参见方案)。利用易于获得的铜盐和适用于工业规模的氰化试剂,该反应对实际不对称合成具有重要意义。这些催化剂是根据 X 射线分析获得的关键结构见解而开发的。