Chiral Sulfinamide Bisphosphine Catalysts: Design, Synthesis, and Application in Highly Enantioselective Intermolecular Cross‐Rauhut–Currier Reactions
作者:Wei Zhou、Xiao Su、Mengna Tao、Chaoze Zhu、Qingjie Zhao、Junliang Zhang
DOI:10.1002/anie.201508108
日期:2015.12
sulfinamide bisphosphine catalysts (Wei‐Phos) were developed. These could be easily prepared from commercially available starting materials. Wei‐Phos has shown good performance in the very challenging intermolecular cross‐Rauhut–Currier reactions of vinyl ketones and 3‐acyl acrylates or 2‐ene‐1,4‐diones, leading to the R‐C products in high yields with up to 99 % ee under 2.5–5 mol% catalyst loading. The highly
开发了一种新型的高效手性亚磺酰胺双膦催化剂(Wei-Phos)。这些可以容易地由可商购的起始原料制备。Wei-Phos在极具挑战性的乙烯基酮与3-丙烯酸3-丙烯酸酯或2-烯-1,4-二酮的分子间跨Rauhut-Currier反应中显示出良好的性能,从而导致R‐C产品的高收率和高达在2.5-5 mol%的催化剂负载下,ee为99%ee。迄今为止,尚未报道2-烯-1,4-二酮和乙烯基酮具有高度区域和对映选择性的交叉Rauhut-Currier反应。