Modification on the quinuclidine and the quinoline moieties of the bis cinchona-alkaloid phthalazine ligands resulted in improved enantioselectivities in the osmium tetroxide catalyzed dihydroxylation of olefins. For the first time 1-decene, a common model for terminal aliphatic olefins, afforded enantioselectivities of over ninety percent.
对双
金鸡纳
生物碱酞嗪配体的
奎尼丁和
喹啉部分的修饰导致四氧化os催化的烯烃的二羟基化反应的对映选择性提高。1-
癸烯,一种末端脂肪族烯烃的通用模型,首次提供了超过90%的对映选择性。