Lewis Acid Mediated Diastereoselective Allylation of 3-Menthyloxycarbonyl-5,6-dihydropyridin-4-ones
作者:Sylvie Brocherieux-Lanoy、Hamid Dhimane、Corinne Vanucci-Bacqué、Gérard Lhommet
DOI:10.1055/s-1999-2623
日期:1999.4
Sakurai allylation of menthyl enoates 5a-c afforded adducts 7a-c with low to excellent facial selectivity, depending on the Lewis acid employed to promote this 1,4-nucleophilic addition of allyltrimethylsilane. A chelated model was assumed to explain the observed diastereoselectivity.
烯酸薄荷酯 5a-c 的 Sakurai 烯丙基化提供了具有低至优异表面选择性的加合物 7a-c,具体取决于用于促进烯丙基三甲基硅烷的这种 1,4-亲核加成的路易斯酸。假设螯合模型可以解释观察到的非对映选择性。