1240243-99-5Relevant academic research and scientific papers
Dibromoisobenzofuran as a formal equivalent of didehydroisobenzofuran: Reactive platform for expeditious assembly of polycycles
Haneda, Hiroshi,Eda, Shohei,Aratani, Masato,Hamura, Toshiyuki
supporting information, p. 286 - 289 (2014/01/23)
Two-directional annulation of dibromoisobenzofuran, a formal equivalent to didehydroisobenzofuran, was developed. Importantly, selective bromine-lithium exchange allows the tandem generation of benzynes and dual cycloadditions with two different arynophiles. Also described is the application to the synthesis of a substituted pentacene.
Synthesis of 1,2,3,4,8,9,10,11-octasubstituted pentacenequinone derivatives and their conversion into substituted pentacenes
Li, Shi,Zhou, Lishan,Nakajima, Kiyohiko,Kanno, Ken-Ichiro,Takahashi, Tamotsu
, p. 1620 - 1626 (2011/08/03)
A series of 1,2,3,4,8,9,10,11-octasubstituted pentacenequinone derivatives were prepared by the oxidation of 1,2,3,4,8,9,10,11-octasubstituted pentacenes, which were synthesized by the double homologation method. Oxidation of the pentacenes was carried out with H5IO6 or air and DDQ. These octasubstituted pentacenequinones were converted into 1,2,3,4,6,8,9,10,11, 13-decasubstituted or 2,3,6,9,10,13-hexasubstituted pentacene derivatives by the introduction of aryl or alkynyl groups at the carbonyl carbons. The photophysical properties of these new pentacenes have been measured in solution, and the substituent effects are discussed.
