Ligand-Promoted Borylation of C(sp<sup>3</sup>
)H Bonds with Palladium(II) Catalysts
作者:Jian He、Heng Jiang、Ryosuke Takise、Ru-Yi Zhu、Gang Chen、Hui-Xiong Dai、T. G. Murali Dhar、Jun Shi、Hao Zhang、Peter T. W. Cheng、Jin-Quan Yu
DOI:10.1002/anie.201509996
日期:2016.1.11
palladium‐catalyzed borylation of C(sp3)H bonds. Primary β‐C(sp3)H bonds in carboxylic acid derivatives as well as secondary C(sp3)H bonds in a variety of carbocyclic rings, including cyclopropanes, cyclobutanes, cyclopentanes, cyclohexanes, and cycloheptanes, can thus be borylated. This directed borylation method complements existing iridium(I)‐ and rhodium(I)‐catalyzed CHborylation reactions in terms
Pd(II)-Catalyzed Carbonylation of C(sp<sup>3</sup>)−H Bonds: A New Entry to 1,4-Dicarbonyl Compounds
作者:Eun Jeong Yoo、Masayuki Wasa、Jin-Quan Yu
DOI:10.1021/ja108754f
日期:2010.12.15
Pd(II)-catalyzed beta-C(sp(3))-H carbonylation of N-arylamides under CO (1 atm) has been achieved. Following amide-directed C(sp(3))-H cleavage and insertion of CO into the resulting [Pd(II)-C(sp(3))] bond, intramolecular C-N reductive elimination gave the corresponding succinimides, which could be readily converted to 1,4-dicarbonyl compounds. This method was found to be effective with substrates containing alpha-hydrogen atoms and could be applied to effect methylene C(sp(3))-H carbonylation of cyclopropanes.