Regioselective Aromatic Borylation in an Inert Solvent
作者:Man Kin Tse、Jian-Yang Cho、Milton R. Smith
DOI:10.1021/ol0162668
日期:2001.9.1
[reaction: see text]. A protocol for performing Rh catalyzed aromatic borylations in cyclohexane has been devised. Borylation at the 5-position of several 1,3-substituted aromatic species ranging from electron-rich (1,3-(NMe(2))(2)C(6)H(4)) to electron-deficient (1,3-(CF(3))(2)C(6)H(4)) yields the corresponding aryl boronateesters. Veratrole was selectively borylated at the 4-position, thus extending