中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-甲基菲 | 2-methylphenathrene | 2531-84-2 | C15H12 | 192.26 |
2-菲甲酸 | phenanthrene-2-carboxylic acid | 40452-20-8 | C15H10O2 | 222.243 |
2-菲甲醛 | 2-Formyl-phenanthren | 26842-00-2 | C15H10O | 206.244 |
2-菲甲酸甲酯 | methyl phenanthrene-2-carboxylate | 25308-63-8 | C16H12O2 | 236.27 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-菲甲醛 | 2-Formyl-phenanthren | 26842-00-2 | C15H10O | 206.244 |
2-(碘甲基)-菲 | 2-(iodomethyl)phenanthrene | 850080-43-2 | C15H11I | 318.157 |
—— | 2-phenanthrylacetonitrile | 74676-81-6 | C16H11N | 217.27 |
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.