and the “push” provided by the RO groupthrough the resonance interaction. Thus, the enhanced nucleofugality forces the reactions to proceed through aconcerted mechanism. The reactivity-selectivity principle (RSP) is not applicable to the current reactionsystems, since the reaction of the less reactive 4 results in a smaller β
以及RO组通过共振相互作用提供的“推动”。因此,增强的离核性迫使反应通过一致的机制进行。反应选择性原理 (R
SP) 不适用于当前的反应系统,因为反应性较低的 4 的反应导致较小的 β