22108-55-0Relevant academic research and scientific papers
High-performance organic semiconductors: Asymmetric linear acenes containing sulphur
Tang, Ming L.,Okamoto, Toshihiro,Bao, Zhenan
, p. 16002 - 16003 (2006)
Two new linear acenes with fused thiophene units have been synthesized. These acenes have conjugation lengths between anthracene and pentacene. Thin films of these linear molecules were characterized by ultraviolet spectroscopy, X-ray diffraction, atomic force microscopy (AFM), and field-effect transistor measurements. Submonolayer AFM studies show growth that greatly resembles pentacene, while thin-film growth is dendritic. Mobilites as high as 0.47 cm2 V-1 s-1 have been found for the tetraceno[2,3-b]thiophene and are as high as 0.15 cm2 V-1 s-1 for anthra[2,3-b]thiophene. Copyright
Facile syntheses of anthra[2,3-b] chalcogenophenes
Niimi, Kazuki,Miyazaki, Eigo,Osaka, Itaru,Takimiya, Kazuo
, p. 2102 - 2106 (2012)
A simple and straightforward method for the synthesis of anthra[2,3-b]furan, anthra[2,3-b]thiophene, and anthra[2,3-b]selenophene from readily available 2-methoxyanthracene is described. Georg Thieme Verlag Stuttgart ? New York.
Syntheses of 7-Substituted Anthra[2,3- b]thiophene Derivatives and Naphtho[2,3- b:6,7- b']dithiophene
Al-Jumaili, Mustafa A.,Woodward, Simon
, p. 11437 - 11445 (2018/09/06)
7-R-Anthra[2,3-b]thiophene derivatives (1, R = H, Me, i-Pr, or MeO) are prepared in three steps (in average overall yield >50%) starting from (E)-4-RC6H4CH2(HOCH2)C=CI(CH2OH). The latter are commercial or readily prepared from 2-butyne-1,4-diol and ArCH2Cl (both costing 1 cent/mmol) at 10 g scales. These allow for the selective formation of (otherwise unattainable) higher solubility 7-derivatives. Similar methods allow for the preparation of naphtho[2,3-b:6,7-b']dithiophene 2 using equally low-cost starting materials.
Synthesis of annulated arenes and heteroarenes by hydriodic acid and red phosphorus mediated reductive cyclization of 2-(Hetero)aroylbenzoic acids or 3-(Hetero)arylphthalides
Rafiq, Settu Muhamad,Mohanakrishnan, Arasambattu K.
supporting information, p. 362 - 370 (2017/02/10)
Annulated arenes and hetarenes were prepared in good to very good yields by hydriodic acid/red phosphorus mediated reductive cyclization of 3-(hetero)aryl phthalides. The reductive cyclization also proceeded successfully with 2-aroylbenzoic acids and 2-aroylnaphthoic acids.
Synthesis of Annulated Anthracenes, Carbazoles, and Thiophenes Involving Bradsher-Type Cyclodehydration or Cyclization-Reductive-Dehydration Reactions
Rafiq, Settu Muhamad,Sivasakthikumaran, Ramakrishnan,Karunakaran, Jayachandran,Mohanakrishnan, Arasambattu K.
, p. 5099 - 5114 (2015/08/18)
A conventional BF3·OEt2-mediated Bradsher-type cyclodehydration of 2-arylmethyl benzaldehydes in CH2Cl2 at room temperature gave polycyclic aromatic and heteroaromatic compounds. Alternatively, these compounds could be synthesized in better yields from 2-arylmethylbenzoic acids by triflic-acid-mediated cyclization followed by reductive dehydration.
