Synthesis of Polyhydroxylated Pyrrolidines and Aziridinopyrrolidines from [4π+2π] Cycloadducts of Cyclopentadiene and Imines/2<i>H</i>-Azirines
作者:José Rodriguez-Borges、Maria Alves、Xerardo García-Mera、Maria Vale、Fabio Aguiar
DOI:10.1055/s-2008-1032196
日期:2008.3
1.0 2,4 ]oct-6-ene-4-carboxylates. The key steps in the synthetic strategy are dihydroxylation with osmium tetroxide/ N-methylmorpholine N-oxide, oxidative cleavage with sodium periodate, and reduction using sodium borohydride or lithium aluminum hydride; overall yields ranged from 40-60%.
描述了通过涉及三个步骤的反应序列从容易获得的多环 Diels-Alder 加合物合成 2-官能化 3,5-双 (羟甲基) 吡咯烷。已应用相同的方法从相应的 2-氮杂三环[3.2.1.0 2,4 ]oct-6-ene-4-羧酸甲酯中获得氮丙啶对应物。该合成策略的关键步骤是用四氧化锇/N-甲基吗啉N-氧化物进行二羟基化,用高碘酸钠进行氧化裂解,以及用硼氢化钠或氢化铝锂进行还原;总产率为 40-60%。