79887-19-7

Usage

InChI:InChI=1/C16H22O/c1-3-5-6-7-8-9-14-17-16-12-10-15(4-2)11-13-16/h2,10-13H,3,5-9,14H2,1H3

Upstream product

• 125151-57-7 4-(p-octyloxyphenyl)-2-methyl-3-butyn-2-ol 
• 96693-06-0 4-(n-octyloxy)-iodobenzene 
• 1066-54-2 trimethylsilylacetylene 
• 265653-39-2 1-(octyloxy)-4-((trimethylsilyl)ethynyl)benzene 
• 111-83-1 1-bromo-octane 
• 540-38-5 p-Iodophenol 
• 37062-63-8 1-(4-octyloxy-phenyl)-ethanone 
• 99-93-4 4-Hydroxyacetophenone 
• 24083-13-4 4-octyloxybenzaldehyde 
• 123-08-0 4-hydroxy-benzaldehyde 
• 96693-05-9 1-bromo-4-octyloxybenzene 
• 106-41-2 4-bromo-phenol 

Downstream Products

• 187939-53-3 4-[4-(4-Octyloxy-phenyl)-buta-1,3-diynyl]-phenol 
• 187939-54-4 4-[4-(4-Octyloxy-phenyl)-buta-1,3-diynyl]-phenylamine 
• 873111-65-0 1-bromo-2,4,5-tris(4-octyloxyphenylethynyl)benzene 
• 34296-25-8 1,2-bis(4-n-octyloxyphenyl)acetylene 

Relevant academic research and scientific papers

Synthesis, mesomorphism, photophysics and device performance of liquid-crystalline pincer complexes of gold(iii)

Emissive gold(iii) complexes of pincer 2,6-diphenylpyridines also bearing a phenylacetylide ligand have been modified at both the pincer and phenylacetylide to confer liquid crystalline properties, with most complexes showing a columnar hexagonal phase in

Synthesis, mesomorphic properties and nonlinear optical studies of alkyl and alkoxy phenylacetylene containing phenazine fused extended triphenylene discotic liquid crystalline dyes

Herein, we have reported the alkyl and alkoxy phenylacetylene containing phenazine fused triphenylene discotic liquid crystals (DLCs) which are obtained by the condensation reaction of triphenylene-1,2-diquinone with 1,2-diamino-4,5-dibromobenzene, followed by Sonogashira C–C coupling reaction with 4-alkyl-phenylacetylene or 4-alkoxy-phenylacetylene. Six novel derivatives were synthesized and evaluated for their thermal and optical properties. They show a broad range of hexagonal columnar phase and retain their mesophase up to room temperature upon cooling from the isotropic liquid. Thermotropic liquid crystalline properties of all the compounds were studied by polarised optical microscopy (POM), differential scanning calorimetry (DSC). The self-assembly of mesophase structure was investigated by X-ray diffraction (XRD) studies. Thermogravimetric analysis of all the mesogens shows good thermal stability over a broad temperature range. The photophysical properties of newly synthesized compounds were measured using UV–Vis absorption and photoluminescence emission spectroscopy in anhydrous chloroform solvent. The π-extended conjugation in these mesogens exhibit strong absorption bands falling around 270–487 nm and corresponding emission band at 657–663 nm respectively. The high delocalization of π– electrons in extended discotic mesogens show high nonlinear optical properties when measured under excitation by nanosecond laser pulses at 532 nm. These materials may find distinctive applications in the semiconducting devices.

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.

Thermal and nonlinear optical studies of newly synthesized EDOT based bent-core and hockey-stick like liquid crystals

Novel EDOT based bent-core and hockey-stick shaped mesogens bearing terminal alkyl chains and alkoxy terminal chains, respectively, have been designed and synthesized via the Sonogashira coupling reaction. Molecular structures of these new compounds were

The metal complex, a chiral nematic liquid crystal composition and crystal (by machine translation)

[Problem] helical twisting power (βM ) Is increased, and, compatibility with a large metal complex of a nematic liquid crystal, chiral nematic liquid crystal composition using the same, and a liquid crystal element. (1) Or formula (2) represented by the formula [a] complex. (1) Or formula (2) in the metal complex represented by formula having chirality, nematic liquid crystal compounds containing chiral nematic liquid crystal compositions. Chiral nematic liquid crystal composition is filled between a pair of liquid crystal element. (R is C1 a-20 straight chain alkyl group or an alkoxy group of straight chain C1 a-20)[Drawing] no (by machine translation)

"colored" inorganic dopants for inducing liquid crystal chiral nematic and blue phases: Monitoring of dopant-host interaction by Raman spectroscopy

A new ruthenium complex that effectively induces chiral nematic and blue phases upon doping with a nematic liquid crystal was developed. The red-colored dopant exhibits strong Raman scattering in solution and nematics even at low concentrations. Further m

Quinolines by three-component reaction: Synthesis and photophysical studies

The synthesis of five quinolines 8-octyloxy-4-[4-(octyloxy)phenyl]quinoline and 6-alkoxy- 2-(4-alkoxyphenyl)-4-[(4-octyloxy)aryl]quinolines are described by three-component coupling reaction mediated by Lewis acid FeCl3 and Yb(OTf)3. 4-n-octyloxybenzaldehyde, anisaldehyde, 4-n-octyloxyaniline p-anisidine, and 1-ethynyl-4-heptyloxybenzene, 1-ethynyl-4-octyloxybenzene and 2-ethynyl-6-heptyloxynaphthalene are the reagents in this protocol. A Yb3+ catalyst resulted in higher yields of quinolines than Fe3+. Polarizing optical microscopy (POM) revealed that none of the quinolines were liquid crystals, even the more anisotropic. UV-Vis measurements of one of the quinolines in polar solvent show two absorption bands at 280 and 350 nm related to π,π?and n,π?transitions. No changes were observed to lower-energy absorption band (ε 4 mol L-1 cm-1) related to n,π?transition. A laser flash photolysis study for one of the quinolines relates a main transient band at 450 nm with a lifetime of 2.6 μs in ethanol, which is completely quenched in the presence of oxygen. This transient band was assigned to triplet-triplet absorption of one of the quinolines, which is semi-oxidised in the presence of phenol. Radiative rate constants have been determined along singlet and triplet excited state energies (3.39 and 3.10 eV, respectively). The chemical structure of one of the quinolines was also unequivocally confirmed by single-crystal X-ray analysis.

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

A rapid and efficient synthetic route to terminal arylacetylenes by tetrabutylammonium hydroxide- and methanol-catalyzed cleavage of 4-aryl-2-methyl-3-butyn-2-ols

Tetrabutylammonium hydroxide with methanol as an additive was found to be a highly active catalyst for the cleavage of 4-aryl-2-methyl-3-butyn-2-ols. The reaction was performed at 55-75 °C and gave terminal arylacetylenes in good to excellent yields within several minutes. Compared with the usual reaction conditions (normally >110 °C, several hours), this novel catalyst system can dramatically decrease the reaction time under much milder conditions.

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