The rhodium-catalyzed controllable diverse arylation of 2,5-dihydrofuran with arylboronic acids is reported. By fine-tuning of the reaction conditions, four different ring-opening or oxidative arylation pathways are controlled in the rhodium-catalyzedarylation of 2,5-dihydrofuran, granting selective access to 2-aryl or 3-aryl homoallylic alcohols and 3-aryl or 4-aryl-2,3-dihydrofurans. The catalytic
Ni-Catalyzed Stereoselective Arylation of Inert C–O bonds at Low Temperatures
作者:Josep Cornella、Ruben Martin
DOI:10.1021/ol4031815
日期:2013.12.20
A Ni-catalyzed arylation of inert C-O bonds that operates at temperatures as low as -40 degrees C is described. Unlike other methods for C-O bond cleavage utilizing organometallic species, this protocol operates at low temperatures, thus allowing the presence of sensitive functional groups with exquisite site-selectivity and stereoselectivity.