82-05-3Relevant articles and documents
Synthesis and Characterization of Polysubstituted Dibenzopyrenes as Charge-Transporting Materials
Kumar, Sushil,Ho, Man-Tzu,Tao, Yu-Tai
, p. 4876 - 4879 (2016)
A new class of benzopyrene-based semiconducting molecules is prepared and characterized. A four-step protocol involving Suzuki coupling and aromatic dehydrogenation reactions renders the new unsymmetrical framework. Introduction of various substituents at the dibenzopyrene framework modulates mainly the optoelectronic properties rather than the packing motif. Single-crystal field-effect transistors fabricated from these materials show a mobility ranging from 0.7 to 3.2 cm2/(V s). The highest mobility, 3.2 cm2/(V s), with an on/off ratio of 104-105 was achieved for 11-methoxy-8-(4-methoxyphenyl)dibenzo[a,e]pyrene.
Novel production method of phenanthrone (by machine translation)
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Paragraph 0031-0043, (2020/01/25)
The invention relates to the field of, fine chemical engineering, in particular to a, preparation method of phenanthrapyone: and, specifically, relates, to a method for preparing phenylanthrone, in particular, to H the following steps of: transferring a catalyst and a solvent to a pressure reaction kettle through a catalyst and a solvent in an anthraquinone process. 2 After the reaction completion of the reaction was; completed, the reaction solution was, cooled and the reaction solution, was left to H leave the remainder. 2 Compared with the prior, art, the method, disclosed by the invention has second the advantages; that the raw material recycling rate is; high second the process is, easy to control, the cost is; low, and the product quality, is obviously improved . (by machine translation)
Palladium-Catalyzed Site-Selective Benzocyclization of Naphthoic Acids with Diaryliodonium Salts: Efficient Access to Benzanthrones
Xue, Chenwei,Wang, Limin,Han, Jianwei
, p. 15406 - 15414 (2020/12/23)
Dual activation of both C-I and vicinal C-H bonds of diaryliodonium salts allowing for diarylation is a subject of rapid construction of π-extended frameworks. Here, we report palladium-catalyzed cascade of C8-arylation/intramolecular Friedel-Crafts acylation of α-naphthoic acids in the synthesis of benzanthrone derivatives. The step-economical protocol tolerates various substrates, which resulted in a potential molecular library for developing functional polycyclic scaffolds. The approach relies on the synergistic action of strong acid with palladium catalysts to form two bonds in a one-pot procedure.
