@article{SchnitzleinZhuShoyamaetal.2022,
  author    = {Schnitzlein, Matthias and Zhu, Chongwei and Shoyama, Kazutaka and W{\"u}rthner, Frank},
  title     = {π-Extended Pleiadienes by [5+2] Annulation of 1-Boraphenalenes and ortho-Dihaloarenes},
  series = {Chemistry - A European Journal},
  volume    = {28},
  journal   = {Chemistry - A European Journal},
  number    = {61},
  doi       = {10.1002/chem.202202053},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-293919},
  year      = {2022},
  abstract  = {Palladium-catalyzed [5+2] annulation of 1-boraphenalenes with ortho-dihaloarenes afforded negatively curved π-extended pleiadienes. Two benzo[1,2-i:4,5-i']dipleiadienes (BDPs) featuring a seven-six-seven-membered ring arrangement were synthesized and investigated. Their crystal structure revealed a unique packing arrangement and theoretical calculations were employed to shed light onto the dynamic behavior of the BDP moiety and its aromaticity. Further, a naphthalene-fused pleiadiene was stitched together by oxidative cyclodehydrogenation to yield an additional five-membered ring. This formal azulene moiety led to distinct changes in optical and redox properties and increased perturbation of the aromatic system.},
  language  = {en}
}