Ueber den Begleiter des Benzols im Steinkohlentheer

The Chemistry of Conducting Polythiophenes

“…[17] The acid-induced polymerization of thiophene was reported as early as 1883, but produces tetrahydrothiophene units. [18] A novel polymerization of thiophene vapor can produce encapsulated PT in zeolites that contain transition metals. [19] Despite the lack of processability, the expected high temperature stability [14] and potentially very high electrical conductivity of PT films (if made) still make it a highly desirable material.…”

Tausendsassa der Elemente

“…Er hatte diese Verbindung als Komponente von Benzolproben im Jahr 1883 entdeckt, wobei die Reaktion ausgehend von Acetylen und Schwefelwasserstoff erfolgte (Abbildung 2). 4) Weitere frühe Synthesebeispiele sind die Paal-Knorr-Synthese 5) ausgehend von 1,4-Dicarbonylverbindungen und P 4 S 10 sowie die Hindsberg-und Fiesselmann-Synthesen, 6,7) die Thiophene aus Thioethern beziehungsweise Thiolen liefern. Die Gewald-Reaktion macht 2-Amino-substituierte Thiophene zugänglich.…”

Conducting Polymers with Superhydrophobic Effects as Anticorrosion Coating

“…[39][40][41] A highly conducting form of polythiophene is composed of monomers linked at the 2-and 5-positions. Chemical synthesis of polythiophene can be performed by mixing thiophene monomer and sulfuric acid to yield a dark insoluble material or by using a Grignardtype coupling of 2,5-dibromothiophene.…”