180678-30-2

Upstream product

• 2150-43-8 3,4-dihydroxybenzoic acid methyl ester 
• 112-82-3 hexadecanyl bromide 
• 99-50-3 3,4-Dihydroxybenzoic acid 

Downstream Products

• 180678-33-5 3,4-bis(n-hexadecane-1-yloxy)-benzoic acid 
• 917079-05-1 3,4-di(hexadecyloxy)benzyl alcohol 
• 1184937-92-5 C₈₁H₁₄₂O₇ 
• 180678-36-8 benzyl 4-(3,4-di(hexadecyloxy)benzoyloxy)benzoate 
• 180678-41-5 4-(3,4-di(hexadecyloxy)benzoyloxy)benzoic acid 
• 869852-81-3 4-[3,4-di(hexadecyloxy)benzoyloxy] benzyl alcohol 
• 869852-84-6 4-[3,4-di(hexadecyloxy)benzoyloxy] benzyl bromide 
• 870719-58-7 3,5-bis[3',4'-di(hexadecan-1-yloxy)benzyloxy]benzoic acid 
• 870719-51-0 methyl 3,5-bis[3',4'-di(hexadecan-1-yloxy)benzyloxy]benzoate 
• 870719-47-4 3,4-bis(hexadecan-1-yloxy)benzyl chloride 
• 917079-06-2 (3,4-bis-hexadecyloxy-benzyl)-dimethyl-amine 

Relevant academic research and scientific papers

Organogelator, organogel with double responses and preparation method of organogel

The invention discloses an organogelator, organogel with double responses and a preparation method of the organogel. The organogelator is N-(3,4-alkoxybenzoyl)-N'-(4'-nitrobenzoyl) hydrazine, and a structure formula of the organogelator is defined in the

Triketonate difluoroboron complexes. Substitution-dependent liquid crystal and photophysical properties

Novel alkyloxyphenyl-substituted β,δ-triketonate difluoroboron complexes have been efficiently synthesised and thoroughly characterised. Significant features such as liquid crystal behaviour and solid and solution fluorescence are observed in all cases. The mesomorphism was determined by the presence of one, two or three alkyl chains in each substituent aromatic group of the triketonate ligand. So, smectic C mesophases were found for compounds carrying two lateral chains, each of them located at one of each phenyl substituent, while the presence of four or six chains at the whole molecule gave rise to smectic A or discotic lamellar and hexagonal columnar mesophases, respectively. Fluorescence in the solid state and in solution is again proved to be dependent on the ligand substitution as well as to be maintained in the mesophase. These multifunctional materials also present luminescent sensor activity towards Hg2+ and Cu2+.

Self-assembly of imidazolium-based rodlike ionic liquid crystals: transition from lamellar to micellar organization

By using aryl-amination chemistry, a series of rodlike 1-phenyl1H- imidazole-based liquid crystals (LCs) and related imidazolium-based ionic liquid crystals (ILCs) has been prepared. The number and length of the C-terminal chains (at the noncharged end of the rodlike core) and the length of the N-terminal chain (on the imidazolium unit in the ILCs) were modified and the influence of these structural parameters on the mode of self-assembly in LC phases was investigated by polarizing microscopy, differential scanning calorimetry, and X-ray diffraction. For the single-chain imidazole derivatives nematic phases (N) and bilayer SmA2 phases were found, but upon increasing the number of alkyl chains the LC phases were lost. For the related imidazolium salts LC phases were preserved upon increasing the number and length of the C-terminal chains and in this series it leads to the phase sequence SmA-columnar (Col)-micellar cubic (Cuby1/Pm3n). Elongation of the N-terminal chain gives the reversed sequence. Short Nterminal chains prefer an end-to-end packing of the mesogens in which these chains are separated from the C-terminal chains. Elongation of the N-terminal chain leads to a mixing of N- and C-terminal chains, which is accompanied by complete intercalation of the aromatic cores. In the smectic phases this gives rise to a transition from bilayer (SmA2) to monolayer smectic (SmA) phases. For the columnar and cubic phases the segregated end-to-end packing leads to core-shell aggregates. In this case, elongation of the N-terminal chains distorts core-shell formation and removes Cub1 and Col phases in favor of single-layer SmA phases. Hence, by tailoring the length of the N-terminal chain, a crossover from taper-shaped to polycatenar LC tectons was achieved, which provides a powerful tool for control of self-assembly in ILCs.

Mesomorphic imidazolium salts: New vectors for efficient siRNA transfection

The preparation of chloride (1n) and bromide (2n) derivatives of 1-methyl-3-[3,4-bis(alkoxy)benzyl]-4H-imidazolium with n ) 6, 12, 16, 18 is described. The two series of salts possess a rich thermotropic mesomorphism, chain-length de

Synthesis of novel dimeric cationic lipids based on an aromatic backbone between the hydrocarbon chains and headgroup

Seven dimeric cationic lipids possessing an aromatic anchor between the hydrocarbon chains and cationic headgroup have been synthesized. The spacers in these lipids vary in length, hydrophobicity and flexibility. The synthesis, membrane-forming properties

Thermoreversible cis-cisoidal to cis-transoidal isomerization of helical dendronized polyphenylacetylenes

High cis content (81-99%) cis-transoidal polyphenylacetylene (PPA) jacketed with amphiphilic self-assembling dendrons, poly[(3,4-3,5)mG2-4EBn] with m = 8, 10, 12, 14, 16, and (S)-3,7-dimethyloctyl, were synthesized by Rh(C≡CPh)(nbd)(PPh3)2

Lanthanide luminescent mesomorphic complexes with macrocycles derived from diaza-18-crown-6

Four tetracatenar (L1-L4) and one hexacatenar (L5) ligands, derived from the diaza-18-crown-6 framework, are synthesized and characterized. In these ligands, the amine functions are fitted with benzoyloxybenzyl linker groups, attached either with a carbon

Phasmidic phases in macrocyclic liquid crystals

In this article we describe the synthesis, characterisation and phase behaviour of some phasmidic liquid crystals containing the diaza 18-crown-6 macrocyclic core. Seven compounds were synthesised, five tetracatenar and two hexacatenar. The terminal alkoxy chains were varied in length from ten to eighteen carbon atoms, and the number of phenyl rings in the mesogenic units was set at either two or three. Depending on the nature of the mesogenic moiety, hexagonal columnar phasmidic and smectic phases were found to occur for these systems. The natures and structures of the columnar phases found for these systems are discussed in relation to the conformational structure of the macrocyclic core and to the overall geometry, shape and flexibility of the molecular structures.