Photodehydrocyclizations in stilbene-like compounds. X. Rearrangements in the photocyclization of 4,5-diphenyltriphenylene and 4,5-diphenylphenanthrene
Thermal Cyclodehydrogenations To Form 6-Membered Rings: Cyclizations of [5]Helicenes
作者:Xiang Xue、Lawrence T. Scott
DOI:10.1021/ol7015516
日期:2007.9.1
Flash vacuum pyrolysis (FVP) of [5]helicene induces a thermal cyclodehydrogenation to form benzo[ghi]perylene. Evidence is presented that supports an electrocyclization-rearomatization mechanism and is inconsistent with mechanistic alternatives involving the intermediacy of aryl radicals or carbenes in the helicene fjord region.
Clar, Chemische Berichte, 1948, vol. 81, p. 520,526
作者:Clar
DOI:——
日期:——
Zelikovich, Lior; Hoffman, Roy E.; Ayalon , Ari, Journal of the Chemical Society. Perkin transactions II, 1992, # 10, p. 1785 - 1792
作者:Zelikovich, Lior、Hoffman, Roy E.、Ayalon , Ari、Rabinovitz, Mordecai