Preparation of optically active 3-substituted piperidines via ring expansion: synthesis of 4-amino- and 4-fluoro-1,4,5-trideoxy-1,5-imino-D-ribitol and 1,5-dideoxy-1,5-imino-D-ribitol
作者:Dae-Kee Kim、Ganghyeok Kim、Young-Woo Kim
DOI:10.1039/p19960000803
日期:——
A new method for the preparation of optically active 3-substituted 1-benzylpiperidines based on the ring expansion of the 1-benzyl-2-(methylsulfonyloxymethyl)pyrrolidine 13 with various nucleophiles has been described. Synthesis of 4-amino-1,4,5-trideoxy-1,5-imino-D-ribitol 5,1,4,5-trideoxy-4-fluoro-1,5-imino-D-ribitol 6 and 1,5-dideoxy-1,5-imino-D-ribitol 7 has also been achieved by a route which involves ring expansion of compound 13.
介绍了一种基于 1-苄基-2-(甲磺酰氧基甲基)吡咯烷 13 与各种亲核剂的扩环作用制备光学活性 3-取代 1-苄基哌啶的新方法。4- 氨基-1,4,5-三脱氧-1,5-亚氨基-D-核糖醇 5、1,4,5-三脱氧-4-氟-1,5-亚氨基-D-核糖醇 6 和 1,5-二脱氧-1,5-亚氨基-D-核糖醇 7 也是通过化合物 13 扩环的路线合成的。