中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-bromo-1-methyl-4-(prop-1-en-2-yl)benzene | 40180-82-3 | C10H11Br | 211.101 |
3'-溴-4'-甲基苯乙酮 | 3-bromo-4-methylacetophenone | 40180-80-1 | C9H9BrO | 213.074 |
The synthesis of mansonone E was completed in six steps and 34% overall yield from commercially available starting material 3-bromo-4-methyl acetophenone. The thermal ring expansion of a cyclobutenedione derivative followed by an intramolecular 1,3-alkoxy exchange provided a facile route to the 1,2-naphthoquinone tricyclic structure of mansonone E.