Bulky Substituent Effect on Reactivity of Localized Singlet Cyclopentane‐1,3‐diyls with π‐Single Bonding (C‐π‐C) Character
作者:Rikuo Akisaka、Manabu Abe
DOI:10.1002/asia.201901253
日期:2019.12.2
key intermediates, such as long-lived singlet diradicals, is essential to understand the homolytic bond cleavage reactions. In this study, we evaluate the effect of bulky substituents at the meta-position of the phenyl ring on the bond formation process in singlet 2,2-diethoxy-1,3-diarylcyclopentane-1,3-diyls. The bulky groups have significant influence on the diradical lifetime, as such, when the
彻底研究关键中间体(例如长寿命单峰双自由基)对于理解均溶键裂解反应至关重要。在这项研究中,我们评估了在单线态2,2-二乙氧基-1,3-二芳基环戊烷-1,3-二基中苯环的间位大取代基对键形成过程的影响。庞大的基团对双自由基的寿命有重大影响,因此,当使用三异丙基苯基时,在293 K下,其寿命是苯中母双自由基的寿命的45倍。