An example of substitution proceeding with retention in the S RN1 reaction. Trapping of a pyramidal benzylic radical by benzenethiolate ion
作者:Robert K. Norris、Rosalind J. Smyth-King
DOI:10.1039/c39810000079
日期:——
The SRN1reaction of c-4-t-butyl-c-2-methyl-r-1-nitro-1-p-nitrophenylcyclohexane with sodium benzenethiolate in hexamethylphosphoramide, which proceeds with retention of configuration at C-1 at relatively high thiolate concentrations, and with competing inversion and retention at lower thiolate concentrations, implicates the formation and trapping of a pyramidal benzylic radical.
c -4-叔丁基-c -2-甲基-r -1-硝基-1-对硝基苯基环己烷与苯硫酸钠在六甲基磷酰胺中的S RN 1反应,该反应在较高的C-1保持构型硫醇盐的浓度,以及竞争性的转化和在较低硫醇盐浓度下的保留,都意味着金字塔状苄基的形成和捕获。