We report here a novel and easy-to-handle reductive dehalogenation of 9-bromofluorene in the presence of arylaldehydes and dicarbonyl derivatives to give the corresponding fluorenyl alcohol derivatives and Darzens epoxides as by-products in tetrakis(dimethylamino)ethylene (TDAE) reaction conditions. The reaction is believed to proceed via two successive single electron transfers to generate the fluorenyl
我们在此报告了一种新颖且易于处理的
9-溴芴在芳醛和二羰基衍
生物存在下的还原脱卤反应,在四(
二甲氨基)
乙烯(T
DAE)反应条件下得到相应的
芴醇衍
生物和 Darzens
环氧化物作为副产物. 据信该反应通过两个连续的单电子转移进行,以产生能够与不同亲电子试剂反应的
芴基阴离子。进行了机理研究以了解
环氧化物衍
生物的形成。