Reversible Photoisomerization from Borepin to Boratanorcaradiene and Double Aryl Migration from Boron to Carbon
作者:Zhe‐Chang He、Soren K. Mellerup、Lijie Liu、Xiang Wang、Caitlin Dao、Suning Wang
DOI:10.1002/anie.201902231
日期:2019.5.13
B(npy)Ar2 (npy=2‐(naphthalen‐1‐yl)pyridine) compounds bearing various nonbulky arylgroups undergo a clean and sequential two‐step photoisomerization in which two aryl substituents on boron migrate to a carbon atom of the naphthyl moiety. The second isomerization step is the first example of a reversible photoisoermization between a borepin and a borirane. Both steric and electronic factors have been