265653-39-2

Upstream product

• 106-41-2 4-bromo-phenol 
• 540-38-5 p-Iodophenol 
• 96693-05-9 1-bromo-4-octyloxybenzene 
• 1066-54-2 trimethylsilylacetylene 
• 111-83-1 1-bromo-octane 
• 96693-06-0 4-(n-octyloxy)-iodobenzene 

Downstream Products

• 34296-25-8 1,2-bis(4-n-octyloxyphenyl)acetylene 
• 79887-19-7 4-octyloxyphenylacetylene 

Relevant academic research and scientific papers

Alkyloxy modified pyrene fluorophores with tunable photophysical and crystalline properties

Novel alkyloxy modified 2,7-di-tert-butyl-4,5,9,10-tetra(arylethynyl)pyrenes were prepared through a straightforward Sonogashira coupling approach. Optical properties such as quantum yields and absorption/emission spectra of the fluorophores were investigated by UV/Vis and fluorescence measurements. Aggregation induced excimer formation of the chromophores in polar solvents and in the solid state was proved by the presence of a characteristic bathochromically shifted emission band and a decrease of the emission capability. These results strongly indicate the unexpected observation that the excimer formation of adjacent pyrene rings is not prevented by the introduction of bulky tert-butyl substituents. Single-crystal X-ray and computational analyses reveal the co-planar alignment of adjacent molecules and the presence of π-π-stacking in the molecular packing of the pyrene polyaromatics. Furthermore, fluorescence, DSC and POM measurements indicate that the aggregation behaviour, the thermal characteristics and the crystalline properties are significantly influenced by changing structural features of the attached functional groups at the periphery of the pyrene core.

Synthesis of unsymmetrical aryl-ethynylated benzenes via regiocontrolled Sonogashira reaction of 1,3,5-tribromobenzene

Sonogashira coupling of trimethylsilylacetylene with 4-alkyloxy-1-iodobenzenes gave 2-(4-(alkyloxy)phenyl)ethynyltrimethylsilanes which undergo deprotection via removal of TMS-group using tetrabutylammonium fluoride (TBAF) in THF at room temperature to af

Synthesis of fluorine-containing molecular rotors and their assembly on gold nanoparticles

A series of eight rotors containing thiol groups for attachment to gold surfaces and fluorine atoms for solid-state 19F NMR spectroscopy have been prepared through linear, multistep synthesis. The common rotating part of the rotors (rotator), c

Synthesis, characterization and DFT calculations of new ethynyl-bridged C60 derivatives

A new series of soluble C60 derivatives for organic electronic application has been synthesized by ethynylation reaction using different electron-donating and electron-withdrawing groups of varying length.

Solid dimorphism of tetra-arylcyclobutadienecobalt derivatives bearing long aliphatic lateral groups

A new series of disk-like cyclobutadienecobalt derivatives symmetrically substituted by lateral alkoxy groups with different chain lengths (-O(CH2)nCH3, n=5, 6, 8, and 12) were prepared and their thermal phase transition b