中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (1S,4R)-2-[(S)-3-tert-Butoxy-2-methyl-prop-(E)-ylidene]-1-isopropyl-4-methyl-cyclohexane | 693833-30-6 | C18H34O | 266.467 |
The SN2′ displacement of menthone-derived allylic carbonates with cuprate reagents occurs with high diastereoselectivity. This method can be used in an iterative fashion to construct stereocenters bearing a 1,3-relationship in a carbon chain. Each iteration provides the adduct in greater than 99% de. The synthesis of three fragments of the polyether ionophore ionomycin is disclosed.Key words: menthone, chiral auxiliary, SN2′ displacement, cuprate, iteration, ionomycin.