One-Pot Synthesis of 6-(Pyridyl)salicylates by Formal [3+3] Cyclizations of 1,3-Bis(silyl enol ethers) with 3-Pyridyl-3-silyloxy-2-en-1-ones - Yawer, Mirza A; Riahi, Abdolmajid; Adeel, Muhammad; Hussain, Ibrar; Fischer, Christine; Langer, Peter (Synthesis, 2008)