kcal/mol. Other possible pathways, namely, SN1, SN1′, etc. for secondary PA, and SN2, SN1 pathways for tertiary PA are also investigated and the associated barrier heights are found higher. Rates of those reactions are also calculated considering the rate‐determining steps only. Reaction of secondary PA with TMB is found to be much faster than the reaction of tertiary PA and the results are in accordance
本文介绍的工作基于理论计算,建立了仲/叔炔
丙醇 (PA) 与
1,3,5-三甲氧基苯 (
TMB) 在
乙腈溶剂 (MeCN) 存在下反应的实验结果。当二级 PA 反应时,反应通过 S
氮2途径,其中反应势垒约为14.32 kcal/mol。另一方面,叔PA通过S与
TMB反应
氮2′和S
氮1′途径,相应的反应势垒为17.59和17.86 kcal/mol。其他可能的途径,即,S
氮1、S
氮1′等用于辅助 PA,以及 S
氮2、S
氮还研究了三级 PA 的 1 路径,发现相关的势垒高度更高。这些反应的速率也仅考虑速率确定步骤来计算。发现二级PA与
TMB的反应比三级PA的反应快得多,结果与实验结果一致。