a conveniently accessible C 2 -symmetric building block, undergoes single or double cross metathesis with methyl acrylate. The cross metathesis products are amenable to stereoselective conjugate addition reactions and can be converted into either γ-butyrolactones or γ-lactams.
(3R,4R)-hexa-1,5-diene-3,4-diol 的受保护衍生物(一种方便获得的 C 2 对称结构单元)与丙烯酸甲酯进行单或双交叉复分解。交叉复分解产物适用于立体选择性共轭加成反应,并可转化为 γ-丁内酯或 γ-内酰胺。