Nickel and Copper Catalyzed
<i>ipso</i>
‐Phosphonodifluoromethylation of Arylboronic Acids with BrCF
<sub>2</sub>
P(O)(OEt)
<sub>2</sub>
for the Synthesis of Phosphonodifluoromethylarenes
作者:Alexander Knieb、Vinayak Krishnamurti、Xanath Ispizua‐Rodriguez、G. K. Surya Prakash
DOI:10.1002/chem.202200457
日期:2022.7.20
The presented method allows the preparation of ipso-phosphonodifluoromethylarenes utilizing a heterobimetallic catalytic system of nickel and copper. The protocol represents an advantage over traditional palladium catalysed Suzuki coupling due to the short reaction times and the use of earth-abundant metals.
Anodic fluorination of benzylphosphonate derivatives was carried out under various electrolytic conditions to provide the corresponding alpha-mono- and/or alpha,alpha-difluoro-products in moderate to good yields. It was found that the selectivity of fluorinated products was depending on the molecular structures of the starting substrates and the electrolytic conditions. (C) 2006 Elsevier B.V. All rights reserved.