One-Pot Diastereoselective Synthesis of 2-Acyl-4-nitrocyclohexanol Derivatives in Aqueous Medium
作者:Roberto Ballini、Luciano Barboni、Giovanna Bosica、Paolino Filippone、Sabina Peretti
DOI:10.1016/s0040-4020(00)00324-0
日期:2000.6
The reaction of primary nitroalkanes with conjugated enones, in water and in the presence of K2CO3 as base, allows the synthesis of 2-acyl-4-nitrocyclohexanol derivatives in which the diastereoisomer (±)-(1S∗,2R∗,5R) is highly predominant. The reaction proceeds by double Michael addition of the nitroalkane to the enone, followed by intramolecular aldol reaction.
伯硝基烷烃与共轭烯酮在水中和在存在K 2 CO 3作为碱的条件下的反应,可以合成其中非对映异构体(±)-(1 S ∗,2 R ∗,5 R)非常重要。该反应通过将硝基烷烃双迈克尔加成至烯酮而进行,然后进行分子内羟醛反应。