Copper-Mediated Fluoroalkylation Reactions with [(Phenylsulfonyl)-difluoromethyl]trimethylsilane: Synthesis of PhSO2CF2-Containing Allenes and Alkynes - Zhu, Jieming; Wang, Fei; Huang, Weizhou; Zhao, Yanchuan; Ye, Wenchao; Hu, Jinbo (Synlett, 2011)