Abstract
The adduct of dimethylamino naphthalene (proton sponge) and 9‐BBN‐NTf2 is activated by steric hinderance for intermolecular borylation (see scheme). A contrasting addition/elimination pathway is favored when using monodentate triethylamine which gives the first observable borenium salt (9‐BBN‐NEt3+ Tf2N−) lacking any n‐ or π‐donor substitutents.
| Original language | English |
|---|---|
| Pages (from-to) | 2098-2101 |
| Journal | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION |
| Volume | 50 |
| State | Published - 2011 |