Microwave-assisted regioselective ring opening of non-activated aziridines by lithium aluminium hydride
作者:Sonja Stanković、Matthias D'hooghe、Norbert De Kimpe
DOI:10.1039/c004960c
日期:——
A new synthetic protocol for the LiAlH4-promoted reduction of non-activated aziridines under microwave conditions was developed. Thus, ring opening of 2-(acetoxymethyl)aziridines provided the corresponding β-amino alcohols, which were then used as eligible substrates in the synthesis of 5-methylmorpholin-2-ones via condensation with glyoxal in THF. The same procedure was applied for the preparation
开发了一种新的合成方案,用于在微波条件下促进LiAlH 4还原未活化的氮丙啶。因此,2-(乙酰氧基甲基)氮丙啶的开环提供了相应的β-氨基醇,然后将它们用作合格的底物,用于通过缩合反应合成5-甲基吗啉-2-酮。乙二醛 在 四氢呋喃。从相应的对映体纯的2-(羟甲基)氮丙啶开始,采用相同的方法制备新型的5(R)-和5(S)-甲基吗啉-2-酮。此外,2-(甲氧基甲基)-和2-(苯氧基甲基)氮丙啶在微波辐射下用LiAlH 4处理,根据反应条件产生异丙胺或1-甲氧基丙烷-2-胺。