90267-18-8

Basic information

• Product Name: Thiophene, 2,5-bis(phenylethynyl)-
• CAS NO: 90267-18-8
• Molecular Formula: C20H12S
• Molecular Weight: 284.381
• Mol File: 90267-18-8.mol
• Article Data: 16

Chemical Properties

• CAS DataBase Reference: Thiophene, 2,5-bis(phenylethynyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Thiophene, 2,5-bis(phenylethynyl)-(90267-18-8)
• EPA Substance Registry System: Thiophene, 2,5-bis(phenylethynyl)-(90267-18-8)

Safety Data

• Hazardous Substances Data: 90267-18-8(Hazardous Substances Data)

Upstream product

• 17257-10-2 5-(phenylethynyl)thiophene-2-carboxaldehyde 
• 91787-22-3 phenyl(phenylsulphonyl)trimethylsilylmethane 
• 625-88-7 2,5-diiodothiophene 
• 637-44-5 phenylpropyolic acid 
• 3141-27-3 2,5-dibromothiophen 
• 536-74-3 phenylacetylene 
• 932-87-6 1-Bromo-2-phenylacetylene 
• 64846-61-3 phenylacetylenic zinc bromide 
• 250643-76-6 tris((2-phenyl)ethynyl)indium 
• 138695-87-1 6-<(tert-butyldiphenylsilyl)oxy>-1-phenyl-3-<(2-tetrahydropyranyl)oxy>hex-1-yne 
• 138695-86-0 6-(tert-Butyl-diphenyl-silanyloxy)-1-phenyl-hex-1-yn-3-ol 
• 138695-90-6 6-<(tetrahydropyranyl)oxy>-1,8-diphenyl-1,7-octadiyn-3-ol 
• 871927-58-1 1,8-diphenyl-1,7-octadiyne-3,6-diol 
• 138695-88-2 6-phenyl-4-<(tetrahydropyranyl)oxy>-5-hexyn-1-ol 

Downstream Products

• 913262-88-1 [((CO)5WP(C₆H₅)(CCC₆H₅))2C₄H₂S] 
• 277301-70-9 2,5-bis[Co2(CO)6(μ-η2:η2-C(C6H5)C)]thiophene 
• 229477-57-0 C₂₀H₁₂O₄S 

Relevant articles and documents

A facile protocol for copper-free palladium-catalyzed Sonogashira coupling in aqueous media

The combination of a readily available palladium catalyst and an eco-friendly basic aqueous solution of room-temperature ionic liquid, choline hydroxide (ChOH), was used in a facile protocol alternative to the Sonogashira coupling reaction, alkynylation of aryl halides in the absence of a copper cocatalyst and an external base. The dual nature of ChOH to act as a base and a green solvent played a crucial role in the catalytic cycle. The coupling reaction progressed efficiently to form a Csp-Csp2 bond under the identified conditions although the reaction outcome depended significantly on the substrates.

A Bithiophene-Promoted ppm Levels of Palladium-Catalyzed Regioselective Hydrosilylation of Terminal Allenes

A bithiophene?alkyne-based compound was synthesized and first utilized as a ligand for the selective hydrosilylation of allenes with primary and secondary phenylsilanes. It shows high selectivity towards the production of branched allylsilanes with a wide range of allenes. It is worth mentioning that the catalytic loading of the palladium can be reduced to 500 ppm. This work opens a new front of using bidentate thiophene ligand as a reaction promoter in transition-metal-catalyzed organic reaction. (Figure presented.).

Thiophene-Alkyne-Based CMPs as Highly Selective Regulators for Oxidative Heck Reaction

Thiophenes containing an adjacent C≡C group as ligands for PdII-promoted organic reactions are reported for the first time. These ligands were utilized as catalytic sites and integrated into the skeleton of conjugated microporous polymers. By e