oxidation and dehydroxylation, respectively. Using the modularly designed organocatalysts (MDOs) self-assembled from cinchona alkaloid derivatives and amino acids in the reaction media, the title products were obtained in good to high yields (up to 97%) and excellent diastereoselectivities (up to 99 : 1 dr) and enantioselectivities (up to 99% ee).
通过使用脂肪醛和 (E)-2-(2-
硝基乙烯基)
苯酚的有机催化多米诺迈克尔/
半缩醛化反应,然后进行
PCC,实现了一种高度对映和非对映选择性的合成功能化色满-2-酮和色满的方法分别是氧化和脱羟基。使用由
金鸡纳
生物碱衍
生物和
氨基酸在反应介质中自组装的模块化设计的有机催化剂(MDO),以良好到高的收率(高达97%)和优异的非对映选择性(高达99:1 dr)获得标题产物和对映选择性(高达 99% ee)。