Dithienoquinazolines – A Convenient Synthesis by the Oxidative Photocyclization of 4, 5‐Dithienyl‐Substituted Pyrimidines and Their Photophysical Properties. Issue 36 (17th November 2014)

• Record Type: Journal Article
• Authors: Verbitskiy, Egor V.; Slepukhin, Pavel A.; Valova, Marina S.; Cheprakova, Ekaterina M.; Schepochkin, Akesandr V.; Rusinov, Gennady L.; Charushin, Valery N.
• Is Part Of: European journal of inorganic chemistry. Issue 36(2014)
• Page Start: 8133
• Page End: 8141
• Publication Date: 2014-11-17
• Subjects: Photocyclization -- Nucleophilic substitution -- UV/Vis spectroscopy -- Luminescence -- Nitrogen heterocycles -- Fused ring systems; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejoc.201403212
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: A convenient synthetic route to novel thienoacene systems bearing a fused pyrimidine ring has been advanced. The commercially available 5‐bromopyrimidine was used as the starting material to obtain various dithienoquinazoline systems through nucleophilic aromatic substitution of hydrogen (the SN H reaction), Suzuki cross‐coupling, and oxidative photocyclization. The redox and optical properties of some of the new compounds have been investigated. The data obtained show the potential of dithienoquinazoline systems in organic electronic applications. Abstract : A convenient route to a new class of thienoacene systems bearing a fused pyrimidine ring is presented along with their optoelectronic properties. The photophysical and electrochemical properties of these newly developed thieno‐aza‐acenes have been investigated by UV/Vis absorption and photoluminescence spectrophotometry and cyclic voltammetry, and some crystal structures have also been determined.