作者:Bartosz Gut、Jacek Mlynarski
DOI:10.1002/ejoc.201500519
日期:2015.8
direct asymmetric self-aldol reactions of various α-oxyaldehydes catalyzed by tertiary amines have been demonstrated. By using 10 mol-% of quinine catalyst, dimerization products have been prepared in high yields, with good anti-diastereocontrol, and up to 80 % ee. The presented enolate-mediated synthesis of protected tetrose sugars has never been accomplished before by chiral tertiary amine organocatalysts
已经证明了由叔胺催化的各种α-氧醛的直接不对称自醛醇反应。通过使用 10 mol-% 的奎宁催化剂,可以高产率地制备二聚产物,具有良好的抗非对映控制能力,ee 可达 80%。所提出的烯醇介导的受保护的丁糖的合成以前从未通过手性叔胺有机催化剂完成。