作者:Maurizio Taddei、Leonarda Piras、Eva Genesio、Chiara Ghiron
DOI:10.1055/s-2008-1072717
日期:2008.5
Using a commercially available device for controlled introduction of hydrogen in a vial for reactions under microwave dielectric heating, we developed a protocol for the transformation of substituted pyridines into the corresponding piperidines. Complete reduction occurred in 40 minutes, or even less, on substrates that require 24-48 hours to be reduced under standard conditions. Moreover, the reduction proved to be as stereoselective as the corresponding reaction carried out at room temperature.
我们使用一种市售设备在微波介电加热下控制氢气的引入,开发了一种将取代吡啶转化为相应哌啶的程序。在标准条件下,需要24-48小时才能还原的底物,在40分钟内甚至更短的时间内就完成了完全还原。此外,所述还原过程在立体选择性方面与在室温下进行的相应反应一样。