中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-Propyl-hydrochinon | 4693-31-6 | C9H12O2 | 152.193 |
2,5-二甲氧基苯丙酮 | 2',5'-dimethoxypropiophenone | 5803-30-5 | C11H14O3 | 194.23 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2,5-dimethoxy-4-propyl benzophenone | —— | C18H20O3 | 284.355 |
Condensation of leuco-5-hydroxyquinizarin with aldehydes under Marschalk conditions (sodium hydroxide – water) gives 2-alkyl-5-hydroxyquinizarins with high regioselectivity, while the 3-alkyl compounds are obtained under Lewis conditions (piperidinium acetate – isopropanol). Reaction of the quinone with nitronate anions in methanol yields 2-alkyl derivatives exclusively.