Nucleophilic substitution reactions of indan-2-yl arenesuifonates with anilines in methanol
作者:Ikchoon Lee、Young Sook Lee、Chul Huh、Hai Whang Lee、Byung Choon Lee
DOI:10.1039/p29930002415
日期:——
The nucleophilic substitution reactions of (Y)-indan-2-yl (Z)-arenesulfonates with (X)-anilines in methanol at 55.0 °C are reported. Sign reversals in all three second-order cross-interaction constants, ρxy, ρyz and ρxz, are observed at non-interaction points z=–0.11 (ρxy= 0), x=–0.02 (ρyz= 0) and Y= 0.43 (ρxz= 0) respectively, which have been ascribed to an unusually large third-order cross-interaction
报道了在55.0°C下,(Y)-茚满-2-基(Z)-芳烃磺酸盐与(X)-苯胺在甲醇中的亲核取代反应。符号颠倒在所有三个第二阶交叉相互作用常数,ρ XY,ρ YZ和ρ XZ,在非交互点观察ž = -0.11(ρ XY = 0),X = -0.02(ρ YZ = 0)和ÿ = 0.43(ρ XZ = 0)分别,已被归因于异常大的第三阶交叉相互作用常数,ρ XYZ = -0.53,反应系列。一个S Ñ具有倾斜,平行2过渡状态层积并在亲核试剂(X),底物(Y)和离去基团(Z)位移的三个苯环的结构,提出的合理化强三体由大的耦合表现ρ XYZ价值。