Copper-Catalyzed Diastereoselective Synthesis of Trifluoromethylated Tetrahydrofurans
作者:Yanan Wang、Min Jiang、Jin-Tao Liu
DOI:10.1002/adsc.201501166
日期:2016.4.14
The copper‐catalyzed intramolecular diastereoselective trifluoromethylcycloetherification of homoallylic alcohols with Togni’s reagent as trifluoromethylating reagent was realized under mild conditions. Various trifluoromethylated tetrahydrofurans were synthesized in moderate to good yields. Moreover, a wide range of common functional groups was tolerated.
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.