O-Isopropylidene derivatives of sugars are readily prepared by using the Lewis acid and dehydrating agent triphenylphosphine polymer-bound/I 2 complex. This new method is characterized by smooth, non-equilibrating reaction conditions and a very clean, simple work-up, making it particularly suitable for O-isopropylidenation of sugars under mild conditions and with low environmental impact.
使用
路易斯酸和脱
水剂
三苯基膦聚合物结合/I 2 复合物很容易制备糖的 O-异亚丙基衍
生物。这种新方法的特点是平稳、非平衡的反应条件和非常干净、简单的后处理,使其特别适用于在温和条件下对糖进行 O-异丙基化,对环境影响低。