| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 2-菲甲酸乙酯 | Phenanthren-carbonsaeure-(2)-ethylester | 94540-85-9 | C17H14O2 | 250.297 |
| 2-乙酰基菲 | 2-acetylphenanthrene | 5960-69-0 | C16H12O | 220.271 |
| —— | 2-propanoylphenanthrene | 110356-77-9 | C17H14O | 234.298 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 2-菲甲酸甲酯 | methyl phenanthrene-2-carboxylate | 25308-63-8 | C16H12O2 | 236.27 |
| 2-菲甲酸乙酯 | Phenanthren-carbonsaeure-(2)-ethylester | 94540-85-9 | C17H14O2 | 250.297 |
| 2-羟甲基菲 | 2-Hydroxymethyl-phenanthren | 2606-54-4 | C15H12O | 208.26 |
| 2-菲甲醛 | 2-Formyl-phenanthren | 26842-00-2 | C15H10O | 206.244 |
| —— | phenanthrene-2-carbonyl chloride | 16331-53-6 | C15H9ClO | 240.689 |
| —— | 2-Phenanthrylhydroxamic acid | 121924-31-0 | C15H11NO2 | 237.258 |
The water soluble steroid 1 acts as a catalyst for the enolization of the ketones 2a-c. The rate enhancement for 1-catalyzed reaction relative to imidazole-catalyzed reaction (R), increases as the size of the aromatic ring system of the substrate increases; a plot of log Rvs π has a slope of 0.43. This is interpreted in terms of hydrophobic binding between steroid α-surface and aromatic ring system which lowers the free energy level of the transition state for steroid-catalyzed enolization.