| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | (Z)-6-(tert-butyldimethylsilyloxy)-4-methylhex-4-en-2-yn-1-ol | 1313867-24-1 | C13H24O2Si | 240.418 |
| —— | (Z)-7-[(tert-butyldimethylsilyl)oxy]-5-methylhept-5-en-3-yn-2-ol | 1228393-78-9 | C14H26O2Si | 254.445 |
| —— | (2E,7Z)-9-[(tert-butyldimethylsilyl)oxy]-7-methylnona-2,7-dien-5-yn-4-ol | 1228393-75-6 | C16H28O2Si | 280.483 |
| —— | (Z)-6-[(tert-butyldimethylsilyl)oxy]-1-(2-methylprop-1-en-1-yl)-4-methylhex-4-en-2-yn-1-ol | 1228393-77-8 | C17H30O2Si | 294.51 |
| —— | (Z)-8-[(tert-butyldimethylsilyl)oxy]-2,2,6-trimethyl-oct-6-en-4-yn-3-ol | 1228393-79-0 | C17H32O2Si | 296.525 |
| —— | (Z)-1-<(tert-butyldimethylsilyl)oxy>-3-methyl-2-dodecen-4-yn-6-ol | 148457-58-3 | C19H36O2Si | 324.579 |
| —— | (2E,7Z)-9-[(tert-butyldimethylsilyl)oxy]-3,7-dimethylnona-2,7-dien-5-yn-4-ol | 199008-00-9 | C17H30O2Si | 294.51 |
| —— | (Z)-6-(benzyloxy)-1-((tert-butyl)dimethylsilyloxy)-3-methylhex-2-en-4-yne | 1313867-30-9 | C20H30O2Si | 330.543 |
An enantioselective synthesis of (+)-8′-demethyl ABA (2) is described. The chiral intermediate 7 was prepared by yeast reduction of a substituted monoprotected cyclohexa-2,5-dien-1,4-dione (9) synthesized through a phenol oxidation. The scope and limitations of the phenol oxidation is described. 8′-Demethyl ABA shows ABA-like activity in wheat embryo germination inhibition, showing that the 8′-methyl group is not essential for biological activity. Key words: abscisic acid, phenol oxidation, yeast reduction.