239-35-0Relevant articles and documents
A Pd-catalyzed optional approach for the synthesis of dibenzothiophenes
Song, Juan,Wu, Hao,Sun, Wei,Wang, Songjiang,Sun, Haisen,Xiao, Kang,Qian, Yan,Liu, Chao
supporting information, p. 2083 - 2087 (2018/03/26)
A direct and practical approach for the construction of DBTs was developed via a Pd-catalyzed tandem reaction, in which commercially available o-bromo-iodobenzenes combined with benzene thiols or iodobenzenes combined with o-bromo-benzene thiols were applied. These two approaches will provide an alternative for the synthesis of DBT derivatives.
Synthetic Utility of Arylmethylsulfones: Annulative π-Extension of Aromatics and Hetero-aromatics Involving Pd(0)-Catalyzed Heck Coupling Reactions
Sankar, Elumalai,Raju, Potharaju,Karunakaran, Jayachandran,Mohanakrishnan, Arasambattu K.
, p. 13583 - 13593 (2017/12/26)
A straightforward and general method for the synthesis of annulated thiophene, dibenzothiophene, and carbazoles analogues has been achieved involving alkylation of 2-bromo-1-(phenylsulfonylmethyl)arene/heteroarene with arylmethyl bromides/heteroarylmethyl bromides using t-BuOK as a base in DMF, followed by Pd(0)-mediated intramolecular Heck coupling in the presence of K2CO3 in DMF at 80-140 °C. The attractive feature of this protocol is that a wide variety of π-conjugated heterocycles could be readily accessed by an appropriate choice of arylmethylsulfones and benzylic bromides.
METHOD FOR SYNTHESIS OF POLYHETEROAROMATIC COMPOUNDS BY USING VISIBLE LIGHT AND REGIOSELECTIVE POYHETEROAROMATIC COMPOUNDS
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Paragraph 0055-0057, (2017/10/05)
The present invention relates to a method for manufacturing polyheteroaromatic compounds, comprising the following steps: preparing a reaction mixture including an aniline compound or a heteroaryl amine compound having heterocycles on 2-position as a substituent, a heteroaryl alkyne compound and a photocatalyst; and irradiating visible rays to the reaction mixture. The present invention further relates to a polyheteroaromatic compound including a heteroaryl group as a substituent and heterocycle adjacent to the substituent.COPYRIGHT KIPO 2017