| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 2,3-二溴-5-甲基-6-硝基-1,4-氢醌 | 2,3-dibromo-5-methyl-6-nitro-1,4-hydroquinone | 105590-32-7 | C7H5Br2NO4 | 326.929 |
The nitrations of 4-methyl (6a) and 4-ethyl (9a) tetrabromo phenols, and 4-methyl (6b) and 4-ethyl (9b) 2,3,5-tribromo-6-nitrophenols are described. The acid- catalysed rearrangements of 4-alkyl-4-hydroxycyclohexa-2,5-dienones (7a,b) and (8a,b) in concentrated sulfuric acid are described, and the effects of the nature of the C4- alkyl group and C6-substituent (Br or NO2) on the observed reactions are discussed.