2-Thiopene[1]benzothieno[3,2-b]benzothiophene derivatives as solution-processable organic semiconductors for organic thin-film transistors

Heterogenization of a Molecular Ni Catalyst within a Porous Macroligand for the Direct C–H Arylation of Heteroarenes

“…[9][10][11] In particular, the arylation of benzothiophene 12 is highly desirable because the (aryl)benzothiophene motif is widely present in active pharmaceutical ingredients (API) of marketed drugs [13][14][15] and in optoelectronic performance materials found in organic lightemitting diodes, organic field effect transistors and organic photovoltaic solar cells. [16][17][18][19] Moreover, the regioselective derivatization is of a paramount importance for structure-related activity. 20 In the case of (benzo)thiophene C2-H selective arylation, reported protocols were mostly restricted to homogeneous platinum group metal (PGM) catalysts, [21][22][23][24] with far less examples using EAM catalysts.…”

Nickel-catalyzed and Li-mediated regiospecific C–H arylation of benzothiophenes

“…11,12 Among heterobiaryls, benzothiophenes are widely used as API 13,14 and optoelectronics building blocks. [15][16][17][18] In contrast to 30 years of literature on Pd [19][20][21][22][23][24] or Ir-catalyzed reactions, 25,26 the direct C-H arylation of benzothiophene using earth-abundant metal systems remains scarcely studied. For example, Daugulis and co-workers reported the C-H phenylation of benzothiophene catalyzed by the combination of 10 mol% CuI/phenanthroline and lithium 3-ethyl-3-pentanolate in N,N'dimethylpropyleneurea.…”

BODIPY‐Based Semiconducting Materials for Organic Bulk Heterojunction Photovoltaics and Thin‐Film Transistors

“…[1] This breakthrough in 1970s has clearly revealed that organic compounds could transport electric current by proper molecular design and controlled doping, and, as a result, organic (semi)conductors have become the key components in organic (opto)electronic devices, especially in organic thin-films transistors (OTFTs) and organic photovoltaics (OPVs). [2][3][4][5][6][7][8][9][10][11] Thanks to the advancements in the past four decades in the design and development of organic semiconductors, OTFTs have emerged as an alternative technology to conventional transistors for cost-effective, large-area, printable, and flexible electronics, [12][13][14][15][16][17][18][19][20][21] and OPVs have emerged as a viable source of low-cost renewable energy with zero carbonemission in everyday life. OPVs are also envisioned to address numerous environmental issues mainly caused by fossil fuels.…”