A sulfoxide directed C–H metalation/boration/B2Pin2 mediated reduction/Suzuki coupling process to synthesize 4-substituted dibenzothiophene (DBT) in one-pot from dibenzothiophene-5-oxide (DBTO) was developed. A variety of DBT-based heterobiaryls were prepared in satisfactory to good yields. A mechanism was proposed. The application of this methodology was demonstrated by synthesizing a luminescent
开发了一种亚砜引导的 C–H
金属化/
硼化/B 2 Pin 2介导的还原/Suzuki 偶联工艺,以一锅法从
二苯并噻吩-5-氧化物 (DBTO) 合成 4-取代
二苯并噻吩 (DBT)。制备了多种基于 DBT 的杂联芳基化合物,收率令人满意。提出了一种机制。通过合成
发光材料证明了该方法的应用。