The effect of N-heterocyclic carbene ligands in the palladium-catalyzed cross-coupling reaction of K[C6F5BF3] with aryl iodides and aryl bromides
作者:Nicolay Yu. Adonin、Dmitrii E. Babushkin、Valentin N. Parmon、Vadim V. Bardin、Gennadiy A. Kostin、Vasiliy I. Mashukov、Hermann-Josef Frohn
DOI:10.1016/j.tet.2008.04.043
日期:2008.6
The effect of N-heterocycliccarbene (NHC) ligands on the catalyticactivity of in situ generated palladiumcomplexes in the model cross-couplingreaction of K[C6F5BF3] with 4-FC6H4I was studied. Based on the obtained results, a series of pentafluorobiphenyls C6F5C6H4X were prepared from K[C6F5BF3] and XC6H4I or 4-CF3C6H4Br in high yields under aerobic conditions.
在K [C 6 F 5 BF 3 ]与4-FC 6 H 4 I的模型交叉偶联反应中,研究了N-杂环卡宾(NHC)配体对原位生成的钯配合物催化活性的影响。根据获得的结果,以高收率从K [C 6 F 5 BF 3 ]和XC 6 H 4 I或4-CF 3 C 6 H 4 Br制备了一系列五氟联苯C 6 F 5 C 6 H 4 X在有氧条件下。