High-speed vibration-milling-promoted synthesis of symmetrical frameworks containing two or three pyrrole units
作者:Marco Leonardi、Mercedes Villacampa、J Carlos Menéndez
DOI:10.3762/bjoc.13.190
日期:——
pseudo-five-component reaction between β-dicarbonyl compounds (2 molecules), diamines and α-iodoketones (2 molecules), prepared in situ from aryl ketones, was performed efficiently under mechanochemical conditions involving high-speed vibration milling with a single zirconium oxide ball. This reaction afforded symmetrical frameworks containing two pyrrole or fused pyrrole units joined by a spacer, which are
由芳基酮原位制备的β-二羰基化合物(2个分子),二胺和α-碘酮(2个分子)之间的拟五组分反应是在机械化学条件下有效进行的,该过程涉及用单个锆进行高速振动研磨氧化球。该反应提供了对称的骨架,该骨架包含两个通过间隔基连接的吡咯或稠合吡咯单元,这在探索用于药物发现目的的化学空间中是令人感兴趣的。该方法还扩展到通过假七组分反应合成包含三个相同吡咯片段的一种化合物。通过一种不同的方法可以达到在其间隔链中具有双键的化合物,该方法涉及通过应用交叉复分解化学方法使1-烯丙基或1-同烯丙基吡咯均一二聚化。