The reaction of arylsulfanyl-stabilized lithium homoenolates with aromatic aldehydes gave anti-adducts with a high level of diastereoselectivity (up to 96% de) and fair enantioselectivity (up to 47% ee) in the presence of (–)-sparteine.
在 (-)-sparteine 的存在下,芳基
硫酰基稳定的均烯醇酸
锂与芳香醛反应生成的反加成物具有很高的非对映选择性(高达 96% de)和相当高的对映选择性(高达 47% ee)。