ChemInform Abstract: Broensted Acid Catalyzed Friedel—Crafts Alkylation Reactions of Trifluoromethyl‐α, β‐ynones with Indoles. Issue 13 (18th March 2013) - Sasaki, Shigeru; Ikekame, Yuta; Tanayama, Manabu; Yamauchi, Takayasu; Higashiyama, Kimio