In this paper we show that the stabilized carbanion dimethyl malonate adds to alkyl 2-(1-hydroxyalkyl)propenoates under basic conditions. Side reactions, such as lactonization or elimination, may be reduced and/or completely avoided by the use of phase transfer catalysis. The high stereoselectivity associated with the additions discussed here was found to be under thermodynamic control.
在本文中,我们展示了稳定碳酰
二甲基丙二酸二甲酯在碱性条件下与 2-(1-羟基烷基)
丙烯酸烷基酯的加成反应。通过使用相转移催化,可以减少和/或完全避免内酯化或消除等副反应。本文所讨论的加成反应的高立体选择性是受热力学控制的。