cobalt-catalyzed reductive carboxylation reaction of alkenyl trifluoromethanesulfonates (triflates) has been developed. By employing Mn powder as a reducing reagent under 1 atm pressure of CO2 at room temperature, diverse alkenyl triflates can be converted to the corresponding α,β-unsaturated carboxylic acids. Moreover, the carboxylation of stericallyhindered aryl triflates proceeds smoothly in the presence of
作者:Marc A. Grundl、Anne Kaster、Ellen D. Beaulieu、Dirk Trauner
DOI:10.1021/ol061980g
日期:2006.11.1
The development of a new variant of the Friedel-Crafts reaction that yields 3-aryl enol triflates is described. The reaction is practical, is atom-economical, and works well with electron-rich arene substrates.