Alkoxyallene‐Based LANCA Three‐Component Synthesis of 1,2‐Diketones, Quinoxalines, and Unique Isoindenone Dimers and a Computational Study of the Isoindenone Dimerization. - Kumar, Roopender; Bera, Mrinal K.; Zimmer, Reinhold; Lentz, Dieter; Reissig, Hans‐Ulrich; Würthwein, Ernst‐Ulrich (European Journal of Organic Chemistry, 2020)