70086-67-8Relevant articles and documents
Non-covalent bridging of bithiophenes through chalcogen bonding grips
Babudri, Francesco,Biot, Nicolas,Bonifazi, Davide,Romito, Deborah
supporting information, p. 6732 - 6738 (2020/05/16)
In this work, chalcogen functionalized dithiophenes, equipped on both extremities with chalcogen-bonding recognition heterocycles, have been prepared following two synthetic pathways. The insertion of the chalcogenazolo[5,4-β]pyridine allows the control of the organization at the solid state. X-Ray diffraction analysis of the single crystals, showed that the Te-doped derivatives give the most persistant assemblies, with the molecules arranging at solid-state in wire-like polymeric structures through Te?N interactions. As expected, the introduction of the Se and Te atoms, dramatically decreases the emission properties, with the Te-bearing congeners being virtually non emissive.
Preparation of Benzothiophenes and Benzoselenophenes from Arylamines and Alkynes via Radical Cascade Reactions
Zang, Hao,Sun, Jian-Guo,Dong, Xin,Li, Ping,Zhang, Bo
, p. 1746 - 1752 (2016/06/09)
An intermolecular radical cascade reaction between readily prepared o-methylthio-arylamines or o-methylselanyl-arylamines and alkynes for the preparation of valuable benzothiophenes or benzoselenophenes is reported. These transformations occur efficiently with complete regioselectivity and the products are obtained in moderate to good yields. The current protocol is successfully applied to the synthesis of the key intermediates of the drug raloxifene and an AT1receptor antagonist.
Walking Down the Chalcogenic Group of the Periodic Table: From Singlet to Triplet Organic Emitters
Kremer, Adrian,Aurisicchio, Claudia,Deleo, Federica,Ventura, Barbara,Wouters, Johan,Armaroli, Nicola,Barbieri, Andrea,Bonifazi, Davide
supporting information, p. 15377 - 15387 (2015/11/02)
The synthesis, X-ray crystal structures, ground- and excited-state UV/Vis absorption spectra, and luminescence properties of chalcogen-doped organic emitters equipped on both extremities with benzoxa-, benzothia-, benzoselena- and benzotellurazole (1
Structure and spectroelectrochemical response of arene-ruthenium and arene-osmium complexes with potentially hemilabile noninnocent ligands
Bubrin, Martina,Schweinfurth, David,Ehret, Fabian,Záli?, Stanislav,Kvapilová, Hana,Fiedler, Jan,Zeng, Qiang,Hartl, Franti?ek,Kaim, Wolfgang
, p. 4973 - 4985 (2015/04/27)
Nine of the compounds [M(L2-)(p-cymene)] (M = Ru, Os, L2- = 4,6-di-tert-butyl-N-aryl-o-amidophenolate) were prepared and structurally characterized (Ru complexes) as coordinatively unsatu-rated, formally 16 valence electron species.
Tandem free-radical addition/substitution chemistry and its application to the preparation of novel AT1 receptor antagonists
Staples, Maree K.,Grange, Rebecca L.,Angus, James A.,Ziogas, James,Tan, Nichole P. H.,Taylor, Michelle K.,Schiesser, Carl H.
scheme or table, p. 473 - 479 (2011/03/17)
Benzothiophene and benzoselenophene analogues of the thiophene-containing antihypertensives milfasartan and eprosartan were prepared and tested for AT1 receptor antagonist properties. While the sulfur-containing systems were prepared following
FeF3/i2-catalyzed synthesis of 4-chalcogen- substituted arylamines by direct thiolation of an arene C-H bond
Fang, Xiao-Li,Tang, Ri-Yuan,Zhang, Xing-Guo,Li, Jin-Heng
experimental part, p. 1099 - 1105 (2011/05/14)
An efficient regioselective synthesis of 4-chalcogen-substituted-arylamines by FeF3-catalyzed sulfenylation and selenation of arylamines has been developed. In the presence of FeF3and I2, a variety of arylamines underwent the reaction with disulfides or diselenides to afford the corresponding 4-sulfenyl-or 4-selenenyl-arylamines in moderate to good yields. Georg Thieme Verlag Stuttgart.
Thermal Formation of Triphenodithiazinequinone and Triphenodiselenazinequinone
Nishi, Hisao,Minami, Satoshi,Kitahara, Kiyoshi
, p. 875 - 876 (2007/10/02)
Thermal treatment of 2,5-bis(2-thioanisidino)-3,6-dichloro-1,4-benzoquinone and its selenium derivative brought about demethylchlorination to give triphenodithiazinequinone and triphenodiselenazinequinone, respectively.
THE 1,3-BENZOTELLURAZOLE : A NEW HETEROCYCLIC SYSTEM
Mbuyi, Musangu,Evers, Michel,Tihange, Guy,Luxen, Andre,Christiaens, Leon
, p. 5873 - 5876 (2007/10/02)
We describe the synthesis of a new heterocyclic system : the 1,3-benzotellurazole, and some of its substituted derivatives.