Proline-Tetrazole-Catalyzed Enantioselective<i>N</i>-Nitroso Aldol Reaction of Aldehydes with In Situ Generated Nitrosocarbonyl Compounds
作者:Biplab Maji、Hisashi Yamamoto
DOI:10.1002/anie.201311069
日期:2014.8.11
to 98 % ee) for the preparation of β‐amino alcohols was achieved by using the readily available proline‐tetrazole as the catalyst for the N‐nitroso aldol reaction of aldehydes with in situ generated nitrosocarbonyl compounds. The key to success of this reaction is the use of MnO2 as an oxidant and catechol as a Brønsted acid additive.
通过使用现成的脯氨酸-四唑作为醛与原位生成的亚硝基羰基化合物的N-亚硝基醛醇缩醛反应的催化剂,可以实现制备β-氨基醇的高度对映选择性的方法(高达ee的98%)。该反应成功的关键是使用MnO 2作为氧化剂,使用儿茶酚作为Brønsted酸添加剂。