作者:A. M. Nazarov、G. A. Yamilova、S. L. Khursan、V. D. Komissarov
DOI:10.1007/bf02494266
日期:1998.11
The reactivity of organic compounds (PhH, PhMe, PhF, PhCl, PhOH, PhOEt, PhCHO, Ph2CO, PhCN, Ph2S, Ph2SO, Ph2SO2, andp-Me2C6H4) toward diphenylcarbonyl oxide Ph2COO was characterized by thek33/k31 ratio, wherek33 andk31 are the rate constants for the reactions of Ph2COO with the arene and diphenyldiazomethane Ph2CN2, respectively. The values ofk33/k31 vary from 2.6·10−3 (PhCN) to 0.65 (Ph2S) (70°C,
有机化合物(PhH、PhMe、PhF、PhCl、PhOH、PhOEt、PhCHO、Ph2CO、PhCN、Ph2S、Ph2SO、Ph2SO2和p-Me2C6H4)对二苯基羰基氧化物Ph2COO的反应性用k33/k31比率表征,其中k33和k31是Ph2COO 分别与芳烃和二苯基重氮甲烷 Ph2CN2 反应的速率常数。k33/k31 的值从 2.6·10-3 (PhCN) 到 0.65 (Ph2S) (70°C, MeCN) 不等。反应之前形成复合物,电荷从底物转移到 Ph2COO。在与芳香物质(Ph2SO、PhCHO 和 Ph2CO 除外)的反应中,羰基氧化物表现为亲电子试剂。