中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 7-chloro-3-ethyl-3,10-dihydrofluoreno[1,2-d]imidazol-10-one | 1173116-71-6 | C16H11ClN2O | 282.729 |
Synthesis of various substituted fluoreno[1,2-d]imidazol-10-ones (5a–5g) has been accomplished by the cyclization of diazotized 1-substituted 4-benzoyl-5- aminobenzimidazoles (4a–4g). Compounds 4a–4g were prepared by reductive ring opening of 3H-imidazo[4′,5′:3,4]benzo[c]isoxazoles (3a–3g) with zinc dust in EtOH/NaOH solution.