One-Pot Synthesis of a Variety of 1,4-Alkadienes and 1,2,4-Alkatrienes from Alkynes, Allyl, or Propargyl Compounds and Electrophiles by a (η2-Propene)Ti(O-i-Pr)2-Mediated Reaction - Okamoto, Sentaro; Takayama, Yuuki; Gao, Yuan; Sato, Fumi (Synthesis, 2000)