derivatives in cyclohexane and was assigned to the CT state by the observation of a substantial red shift with increasing solvent polarity or with increasing electron-withdrawing ability of the substituent. The CT emission energies were found to follow a linear relationship with the Hammett constant of the substituent and the value of the linear slope for 1-NBAs (-0.45 eV) was higher than that of 2-NBAs (-0
Diversity-Oriented Synthesis through Rh-Catalyzed Selective Transformations of a Novel Multirole Directing Group
作者:Bo Su、Jiang-bo Wei、Wen-lian Wu、Zhang-jie Shi
DOI:10.1002/cctc.201500410
日期:2015.9.14
functionalization, directing‐group strategy was developed for the improvement of chemical reactivity and selectivity. Recently, to avoid the inherent limitations of traditional mono‐role directinggroups, a dual‐role oxidizing‐directing‐group strategy was developed, in which the directinggroup acts both as directinggroup and oxidant. Herein, we report a multiroledirectinggroup, which possesses multiple