Palladium-catalyzed electrophilic C–H fluorination of arenes using oxazoline as a removable directing group
作者:David A. Gutierrez、Wan-Chen Cindy Lee、Yuning Shen、Jie Jack Li
DOI:10.1016/j.tetlet.2016.10.079
日期:2016.11
Dimethyloxazoline was rationally designed to act as a removable ortho-directing group (DG) for the palladium-catalyzedC–H electrophilic fluorination of arenes. Using NFSI as the fluorinating agent, and Pd(II), Ag(I) catalytic system, electrophilic C(sp2–H) ortho-fluorination took place on a variety of aryl substrates to afford the corresponding mono- and di-fluorinated products.