Catalytic Boracarboxylation of Alkynes with Diborane and Carbon Dioxide by an N-Heterocyclic Carbene Copper Catalyst

Liang Zhang, Jianhua Cheng, Béatrice Carry, and Zhaomin Hou 

 J. Am. Chem. Soc., 2012, 134 (35), pp 14314–14317 

DOI: 10.1021/ja3063474