Modular Synthesis of Dihydroxyacetone Monoalkyl Ethers and Isosteric 1-Hydroxy-2-alkanones
作者:Deniz Güclü、Madhura Rale、Wolf-Dieter Fessner
DOI:10.1002/ejoc.201403695
日期:2015.5
systematic preparation of libraries of the title compound classes have been evaluated. A general and efficient modular route to dihydroxyacetone monoethers was developed based on trityl glycidol, which, through epoxide opening, oxidation, and deprotection, provided variously alkylated ethers by three routine operations in good overall yields (eight examples, 24–59 %). The preparation of structurally
已经评估了有效、系统地制备标题化合物类别库的简单方法。基于三苯甲基缩水甘油,开发了一种通用且高效的二羟基丙酮单醚模块化路线,通过环氧化物开环、氧化和脱保护,通过三个常规操作以良好的总收率(8 个实例,24-59%)提供各种烷基化醚。结构相关的 1-羟基烷酮的制备取决于最经济的起始材料的可用性及其物理化学性质。因此,最实用的一步法包括使用 NaOCl 对短链 1,2-二醇(≤ C6)进行秒选择性氧化,以及使用缓冲的化学计量 KMnO4 或催化作用对 1-烯烃(≥ C6)进行直接酮羟基化。 RuO4 被 oxone 再氧化,