Reactivity of Lewis Acid Activated Diaza- and Dithiaboroles in Electrophilic Arene Borylation
作者:S. A. Solomon、A. Del Grosso、E. R. Clark、V. Bagutski、J. J. W. McDouall、M. J. Ingleson
DOI:10.1021/om201228e
日期:2012.3.12
3,2-benzodithiaborole ((CatS2)BCl) are active for arene borylation, displaying reactivity between that of catecholato- and dichloro-boron electrophiles. [(CatS2)B(NEt3)][AlCl4] is significantly less prone to nucleophile-induced transfer of halide from [AlCl4]¯ to boron compared to catecholato and dichloro borocations, enabling it to borylate arenes containing nucleophilic −NMe2 moieties in high conversion