339366-14-2Relevant articles and documents
Re(CO)5Br-catalyzed addition of carboxylic acids to terminal alkynes: A high anti-Markovnikov and recoverable homogeneous catalyst
Hua, Ruimao,Tian, Xin
, p. 5782 - 5784 (2004)
The addition of carboxylic acids to terminal alkynes is efficiently catalyzed by the early transition-metal complex Re(CO)5Br in toluene or n-heptane at 110 °C in an air atmosphere, affording the anti-Markovnikov adducts in good yields with high selectivity. In most cases, the reactions afford unusual Z-adduct predominantly. When n-heptane was used as solvent, Re(CO)5Br can be partly recovered from the reaction mixture.
