Regiocontrolled halogen dance of 2,5-dibromopyrroles using equilibrium between dibromopyrrolyllithiums
作者:Tatsuki Okumi、Atsunori Mori、Kentaro Okano
DOI:10.1039/d2cc06373e
日期:——
A regiocontrolled halogen dance reaction of 2,5-dibromopyrroles is described. An N,N-dimethylsulfamoyl group on the pyrrole nitrogen was especially effective for facilitating interconversion of the resulting 2,3- and 2,4-dibromopyrrolyllithiums, rendering the smooth halogen dance reaction. This method was applicable to the formal synthesis of atorvastatin.
描述了 2,5-二溴吡咯的区域控制卤素舞反应。吡咯氮上的N , N-二甲基氨磺酰基对于促进所得 2,3- 和 2,4-二溴吡咯基锂的相互转化特别有效,使卤素舞反应顺利进行。该方法适用于阿托伐他汀的形式合成。