作者:Ai-Hong Zhao、De-Feng Xu、Wen Zhuo、Zhen Rao、Shao-Shun Li
DOI:10.3184/030823407x266216
日期:2007.11
prepared from 1,4-dimethoxybenzene and dichloromaleic anhydride. Reaction with bromochloromethane gave 1,8:4,5-bis(methylenedioxy)naphthalene which with NBS, gave 2-bromo-1,8:4,5-bis-(methylenedioxy)naphthalene. Reaction of the Grignard derivative with DMF afforded 2-formyl-1,8:4,5-bis(methylenedioxy)naphthalene. This method had several advantages compared with the reported synthesis, including fewer steps
2,3-二氢萘甲素由 1,4-二甲氧基苯和二氯马来酸酐制备。与溴氯甲烷反应得到 1,8:4,5-双(亚甲二氧基)萘,与 NBS 反应得到 2-溴-1,8:4,5-双-(亚甲二氧基)萘。格氏衍生物与 DMF 反应得到 2-甲酰基-1,8:4,5-双(亚甲基二氧基)萘。与报道的合成方法相比,该方法有几个优点,包括步骤更少、条件更温和和收率更高。