19163-21-4Relevant articles and documents
Direct thiophene arylation catalysed by palladium
Gozzi, Christel,Lavenot, Laurence,Ilg, Kerstin,Penalva, Vincent,Lemaire, Marc
, p. 8867 - 8870 (1997)
Direct thiophene arylation using a Heck-type reaction with Pd(OAc)2/NBu4Br as catalytic system is reported. Reactions with 2- and 3-substituted thiophenes have shown that substituent nature and position influence the cross-coupling.
Ratiometric luminescent molecular oxygen sensors based on uni-luminophores of CN Pt(II)(acac) complexes that show intense visible-light absorption and balanced fluorescence/phosphorescence dual emission
Liu, Yifan,Guo, Huimin,Zhao, Jianzhang
, p. 11471 - 11473 (2011)
Uni-luminophores of CN cyclometalated Pt(ii) complexes with balanced room temperature fluorescence/phosphorescence dual emission were prepared for ratiometric oxygen sensing in both intensity mode and lifetime mode.
Synthesis of meso-tetraarylthienylporphyrins by Suzuki-Miyaura cross-coupling reaction and studying their UV-Vis absorption spectra
Elghamry, Ibrahim,Abdelsalam, Mamdouh,Al-Faiyz, Yasair,Al-Gadry, Meshail,Al-Taysan, Norah
, p. 322 - 337 (2021/02/12)
meso-Tetra(5-arylthien-2-yl)porphyrins and their copper complexes were synthesized by two different approaches using Suzuki-Miyaura cross-coupling reactions. The first, involving the formation of 5-arylthien-2-yl carbaldehydes, followed by condensation with pyrrole. The second is a direct process that involves the coupling of meso-tetra (5-bromothien-2-yl) porphyrins with the arylboronic acids. The yield of the second approach (40-50 %) was higher than the first approach (28-35 %). The UV-Vis absorption spectra of the synthesized porphyrins revealed bathochromic shifts when compared with the parent porphyrin. Additionally, the products showed no aggregation behaviour in solution (DCM), giving a linear correlation between absorption intensity and the concentration.
Design, synthesis and evaluation of phenylthiazole and phenylthiophene pyrimidindiamine derivatives targeting the bacterial membrane
Chen, Yihua,Fan, Tingting,Guo, Weikai,Hu, Pan,Liu, Mingyao,Shao, Ting,Yi, Zhengfang,Zhou, Wenbo
, (2020/02/20)
As the continuous rise in the incidence of antibiotic resistance, it is urgent to develop novel chemical scaffolds with antibacterial activities to control the spread of resistance to conventional antibiotics. In this study, a series of phenylthiazole and
Catalytic Deprotonative α-Formylation of Heteroarenes by an Amide Base Generated in Situ from Tetramethylammonium Fluoride and Tris(trimethylsilyl)amine
Shigeno, Masanori,Fujii, Yuki,Kajima, Akihisa,Nozawa-Kumada, Kanako,Kondo, Yoshinori
, p. 443 - 451 (2019/04/30)
Heteroarene formylations in DMF solution proceed in the presence of an amide base catalyst generated in situ from tetramethylammonium fluoride (TMAF) and tris(trimethylsilyl)amine (N(TMS)3). The reaction proceeds at room temperature and has an operationally simple procedure. Various heteroarenes, including benzothiophene, thiophene, benzothiazole, oxazole, and indole derivatives, can be formylated with high functional group tolerance.