4105-95-7

Usage

Uses

Used in Scientific Research:
4-Octadecyloxybenzaldehyde is used as a research compound for its hydrophobic nature and structural characteristics, particularly in the fields of organic and polymer chemistry.
Used in Organic Synthesis:
4-Octadecyloxybenzaldehyde is used as a starting material or intermediate in the synthesis of other organic compounds, contributing to the development of new chemical entities and materials.

InChI:InChI=1/C25H42O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-22-27-25-20-18-24(23-26)19-21-25/h18-21,23H,2-17,22H2,1H3

Upstream product

• 629-93-6 n-iodooctadecane 
• 123-08-0 4-hydroxy-benzaldehyde 
• 112-89-0 1-Bromooctadecane 

Downstream Products

• 66693-64-9 p-n-Octadecoxybenzyliden-p-bromanilin 
• 253333-04-9 4-[2-(4-n-octadecyloxy)phenylethenyl]pyridine 
• 80280-50-8 (4-octadecyloxyphenyl)methanol 
• 81016-99-1 5,10,15-tris(4-pyridyl)-20-<4-(octadecyloxy)phenyl>-21H,23H-porphine 
• 80280-49-5 1-chloromethyl-4-octadecyloxybenzene 
• 660850-39-5 N,N'-dimethyl-2-[β-D-galactopyranosyl]-2-(4-octadecyloxybenzyl)malonamide 
• 660850-34-0 1,3-dimethyl-5-[β-D-galactopyranosyl]-5-(4-octadecyloxybenzyl)pyrimidine-2,4,6-trione 

Relevant academic research and scientific papers

Microwave-assisted covalent sidewall functionalization of multiwalled carbon nanotubes

Thermal cycloaddition of 1,3-dipolar azomethine ylides to the side-walls of multiwalled carbon nanotubes (MWNTs) has been used to prepare MWNTs that contain 2-methylenethiol-4-(4-octadecyloxyphenyl) (4), N-octyl-2-(4- octadecyloxyphenyl) (5) or 2-(4-octad

Dynamic rearrangement of bilayers of porphyrin hetero-dimers at a solid/liquid interface

STM reveals that self-assembled bilayers of covalently linked Cu-Mn porphyrin dimers can dynamically rearrange at a solid/liquid interface by rapid exchange of molecules between the bilayer and the supernatant, or via a slower two-dimensional translation of the whole top layer.

Controlling the formation of heliconical smectic phases by molecular design of achiral bent-core molecules

Fluids with spontaneous helical structures formed by achiral low molecular mass molecules is a newly emerging field with great application potential. Here, we explore the chemical mechanisms of the helix formation by systematically modifying the structure of a bent 4-cyanoresorcinol unit functionalized with two different phenyl benzoate based aromatic rods and terminated with two alkyl chains of variable length. The majority of these achiral compounds self-assemble, forming a short-pitch heliconical liquid crystalline phase in broad temperature ranges. In some cases, it occurs without any competing low-temperature phase. We demonstrate that the mirror symmetry broken mesophase occurs at the paraelectric-(anti)ferroelectric transition if the tilt angle of the molecules in the smectic layers is around 18-20° and if this transition coincides with a change of the tilt correlation between the layers. In the close vicinity of this transition, a field-induced heliconical phase develops as well as a new heliconical phase with polarization-randomized structure. These investigations provide a blueprint for the future design of achiral molecules capable of spontaneous mirror symmetry breaking by the formation of heliconical liquid crystalline phases.

Synthesis and mesomorphic properties of coumarin derivatives with chalcone and imine linkages

We report here design and synthesis of two new mesogenic homologous series of coumarin derivatives consisting of chalcone and imine central linkages along with terminal n-alkoxy chain. All the compounds were synthesized and characterized by combination of elemental analysis and standard spectroscopic methods. All compounds were screened under polarising optical microscope (POM) for liquid crystalline properties, thermogram of all compounds were studied using differential scanning calorimetry (DSC) to get phase transition temperatures, enthalpy and entropy. X-ray single crystal study of n-octyloxy coumarin derivative 16 g was resolved with imine central linkage, which showed linear rod like geometry.

Side chain modified porphyrin molecules and application thereof

The invention discloses side chain modified porphyrin molecules and application thereof. According to the side chain modified porphyrin molecules, porphyrin molecules with electron enriching functionsare adopted as a core of capturing charges, an alkoxy chain segment is adopted as an inhibition part of a charge transfer process, and the molecules are ensured to be applied to flexible structures for solution processing. Molecule structures are reasonably designed from the view of film morphologies, preparation processes and performance regulation and control, and properties of organic field effect transistor storage devices are compared. The invention provides a material and device preparation method which is feasible in commercial popularization, low in cost and simple in process while properties of storage devices are regulated.

Self-assembly of covalently linked porphyrin dimers at the solid-liquid interface

The synthesis and surface self-assembly behavior of two types of metal-porphyrin dimers is described. The first dimer type consists of two porphyrins linked via a rigid conjugated spacer, and the second type has an alkyne linker, which allows rotation of

“Effect of the linking unit on the calamitic-shaped liquid crystal: a comparative study of two homologous series of benzoate and cinnamate linked compounds”

Two homologous series based on three linking groups have been synthesized and well characterized by elemental analyses and spectroscopic techniques such as Fourier transform infrared [FT-IR] and proton magnetic resonance magnetic resonance [1H NMR] spectroscopy. The mesomorphic properties of these compounds were observed by using optical polarized microscopy (POM) and confirmed by differential scanning calorimetry (DSC) analysis. In this present investigation, we have synthesized two homologous series viz. (E)-4-(3-(4-(tetra decanoyloxy) phenyl) acryloyl) phenyl-4-n-alkoxy benzoate (Series-1) and 4-((E)-3-(4-(((E)-3-(4-n-alkoxy phenyl) acryloyl) oxy) phenyl)-3-oxo prop-1-en-1-yl) phenyl tetradecanoate (Series-2). Both of the series are differing with respect to the first linking group. All the homologous in following series displays LC properties on heating as well as cooling condition except first four homologous (C1 to C4) in series-1 and six homologous (C1 to C6) in series-2. To get more insights, the HOMO, LUMO studies are carried out which supports intramolecular charge transfer interactions in this class of mesogens.

Mesomorphism behaviour and photoluminescent properties of new asymmetrical 1,2-di(4-alkoxybenzylidene) hydrazines

{1-[4-(n-Alkoxy)]-2-(4’-decyloxy)benzylidene}hydrazines (n-alkoxy = O(CH2)nH, n = 1–9, 12, 16 or 18), an asymmetrical series of 1,2-disubstituted hydrazines, were prepared in a simple two-step procedure as a part of our continuing work in evaluating hydrophobic azine compounds as photoluminescent liquid crystalline materials. The compounds were characterized spectroscopically and their liquid crystalline behaviour and luminescent properties were evaluated using polarized light optical microscopy, differential scanning calorimetry and X-ray powder diffraction techniques. The studies revealed that all of these compounds are liquid crystalline materials exhibiting photoluminescent properties in the crystalline and liquid crystal states.

Mesomorphism dependence on molecular rigidity and flexibility

A novel homologous series of liquid crystalline properties is synthesized and studied with a view to understand the effect of molecular structure on its thermotropic properties. Novel homologous series consisted of thirteen homologs. All the homologs are enantiotropically smectogenic with absence of nematic property even in the monotropic condition. Textures of the homologs as observed through an optical hot stage polarizing microscopy. The mesophase temperature range vary minimum from 6.0°C to a maximum 37.0°C at the methyloxy and propyloxy derivatives of a series respectively with its thermal stability (Sm–I) 127.0°C. Transition curves of a phase diagram behaved in normal manner. Odd–even effect is observed for Sm–I transition curve.

“Dependence of Mesomorphism in Combination with Fluoro and Chloro Groups”

A novel azoester homologous series with chloro lateral group and a fluoro terminal end group was synthesized and characterized for mesomorphic properties. It consists of thirteen azo ester derivatives from trans-4-n-alkoxy cinnamic acid with 4-hydroxy-3-chloro phenyl azo-3-chloro-4-fluoro benzene. Mesomorphic property commences from C4homologue as smectic.C1 to C3 member of the series are non-mesomorphic. C4 to C18 homologous are enantiotropic smectic A phase. The nematic mesophase is totally absent. Texture and transition temperatures of the homologues are determined by an optical polarizing microscopy equipped with heating stage. 1H NMR, IR spectra, mass spectra, of some member is included. The spectroscopic analysis supports the molecular structure. A phase diagram is used to illustrate the mesomorphic behaviour across the series. Mesophaselength for smectic is varying from18.0°C to 69.00C. Mesomorphic properties of the novel azoester series are compared with structurally similar series.