Additive‐Controlled Switchable Selectivity from Cyanobenzenes to 2‐Alkynylpyridines: Ruthenium(II)‐Catalyzed [2+2+2] Cycloadditions of Diynes and Alkynylnitriles. - Bhatt, Divya; Patel, Neha; Chowdhury, Hrishikesh; Bharatam, Prasad V.; Goswami, Avijit (Advanced Synthesis & Catalysis, 2018)