Generation of Arylated Quinones by Iron??Catalyzed Oxidative Arylation of Phenols: Formal Synthesis of Phellodonin, Sarcodonin ε, Leucomelone and Betulinan A
Abstract: Biologically and pharmaceutically relevant arylated quinones (Quin-Ar) have been synthesized via direct CÀH arylation of a variety of phenols using arylboronic acids. An inexpensive, environmentally friendly iron catalyst, ferric sulphate, Fe2ACHTUNGTRENNUNG (SO4) 3, was employed in this operationally simple and efficient method. Keywords: arylated quinones; arylation; iron catalysis; natural products; phenols
[Fujiwara, Yuta; Domingo, Victoriano; Seiple, Ian B.; Gianatassio, Ryan; Del Bel, Matthew; Baran, Phil S. Journal of the American Chemical Society, 2011 , vol. 133, # 10 p. 3292 - 3295]