A Catalytic Oxidative Quinone Heterofunctionalization Method: Synthesis of Strongylophorine-26
作者:Wanwan Yu、Per Hjerrild、Kristian M. Jacobsen、Henriette N. Tobiesen、Line Clemmensen、Thomas B. Poulsen
DOI:10.1002/anie.201805580
日期:2018.7.26
functionalization with a collection of O, N, and S nucleophiles, using oxygen as the terminal oxidant. Preliminary mechanistic observations and the first synthesis of the cytotoxic natural product strongylophorine‐26 is presented.
Generation of Arylated Quinones by Iron-Catalyzed Oxidative Arylation of Phenols: Formal Synthesis of Phellodonin, Sarcodonin ε, Leucomelone and Betulinan A
Biologically and pharmaceutically relevant arylatedquinones (Quin‐Ar) have been synthesized via direct CH arylation of a variety of phenols using arylboronic acids. An inexpensive, environmentally friendly iron catalyst, ferric sulphate, Fe2(SO4)3, was employed in this operationally simple and efficient method.
The synthesis of newderivatives of embelin, a natural inhibitor of X-linked inhibitor of apoptosis protein (XIAP) is described. The design of these new molecules involved introduction of aromatic groups directly linked to the benzoquinone core. To allow a large flexibility in the nature and the length of the added chain, the strategy involves first a Suzuki-Miyaura reaction with functionalized aromatics