115213-33-7

Usage

Uses

Used in Organic Synthesis:
2′,5′-dimethyl-[1,1′:4′,1′′-terphenyl]-4,4′′-dicarboxylic acid is used as a building block in organic synthesis for the creation of complex organic molecules. Its specific functional groups and structural features facilitate the synthesis of a variety of compounds with tailored properties.
Used in Material Science:
In the field of material science, 2′,5′-dimethyl-[1,1′:4′,1′′-terphenyl]-4,4′′-dicarboxylic acid is used as a precursor for the development of new polymers and liquid crystals. Its molecular structure allows for the engineering of materials with specific characteristics, such as improved thermal stability, mechanical strength, or optical properties.
Used in Pharmaceutical Research:
2′,5′-dimethyl-[1,1′:4′,1′′-terphenyl]-4,4′′-dicarboxylic acid is utilized in pharmaceutical research as a potential starting material for the design and synthesis of new pharmaceutical agents. Its unique structure may contribute to the development of drugs with novel mechanisms of action or enhanced therapeutic efficacy.
Used in Chemical Industry:
2′,5′-dimethyl-[1,1′:4′,1′′-terphenyl]-4,4′′-dicarboxylic acid is used in the chemical industry for the production of specialty chemicals and intermediates. Its versatility in chemical reactions makes it a valuable component in the synthesis of various chemical products.

Upstream product

• 79-37-8 oxalyl dichloride 
• 20260-22-4 2',5'-dimethyl-[1,1':4',1'']terphenyl 
• 106-42-3 para-xylene 
• 4516-08-9 2,5-dicyclohexyl-p-xylene 
• 1074-24-4 2,5-dibromo-p-xylene 
• 99768-12-4 4-methoxycarbonylphenylboronic acid 
• 1073132-98-5 dimethyl 2′,5′-dimethyl-[1,1′:4′,1′′-terphenyl]-4,4′′-dicarboxylate 
• 171364-80-0 methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate 

Downstream Products

• 115101-93-4 1,1′:4′ ,1′′-terphenyl-2′,4,4′′,5′-tetracarboxylic acid 

Relevant academic research and scientific papers

Stepwise Assembly of Turn-on Fluorescence Sensors in Multicomponent Metal–Organic Frameworks for in Vitro Cyanide Detection

The controlled synthesis of multicomponent metal–organic frameworks (MOFs) allows for the precise placement of multiple cooperative functional groups within a framework, leading to emergent synergistic effects. Herein, we demonstrate that turn-on fluorescence sensors can be assembled by combining a fluorophore and a recognition moiety within a complex cavity of a multicomponent MOF. An anthracene-based fluorescent linker and a hemicyanine-containing CN?-responsive linker were sequentially installed into the lattice of PCN-700. The selective binding of CN? to hemicyanine inhibited the energy transfer between the two moieties, resulting in a fluorescence turn-on effect. Taking advantage of the high tunability of the MOF platform, the ratio between anthracene and the hemicyanine moiety could be fine-tuned in order to maximize the sensitivity of the overall framework. The optimized MOF-sensor had a CN?-detection limit of 0.05 μm, which is much lower than traditional CN? fluorescent sensors (about 0.2 μm).

Diverse Multi-Functionalized Oligoarenes and Heteroarenes for Porous Crystalline Materials

A modular synthesis of multi-functionalized biphenyl, terphenyl and higher linear oligophenylene dicarboxylic acids and pyridine-terminated oligoarenes by stepwise palladium–catalyzed borylation/Suzuki–Miyaura cross-coupling reactions is described. The presence of several distinct functional groups such as azide, hydroxy, and alkyne, as well as coordinative functional end groups (carboxylic acid or pyridine) combined in a single oligoarene molecular unit at strategic positions offer an advantageous dual-utility. First, these compounds can serve as useful molecular bricks (ditopic organic linkers) in the construction of complex porous crystalline materials. Second, after the assembly into the crystalline coordination networks, orthogonal functional sites within the linker-backbone offer tremendous potential from application perspectives as they can be modified by a wide range of post-synthetic modifications including azide–alkyne click chemistry. This allows further tailoring of the supramolecular assemblies to yield novel multifunctional materials.

Supramolecular complexes used for high-efficiency detection of Hg, based on aromatic carboxylic acid ligand and having fluorescence function, and preparation method thereof

The invention provides supramolecular complexes used for high-efficiency detection of Hg, based on aromatic carboxylic acid ligand and having a fluorescence function, and a preparation method thereof. The objective of the invention is to overcome the problem that the detection limits of conventional substances used for detecting Hg ions are not low enough. The supramolecular complexes provided by the invention have chemical formulas of [Zn(TPDC-2CH3)(H2O)2].H2O and [Cd(TPDC-2CH3)(H2O)4].H2O, respectively. The preparation method comprises the following steps: preparing organic ligand TPDC-2CH3 and then carrying out solvent diffusing so as to prepare [Zn(TPDC-2CH3)(H2O)2].H2O and [Cd(TPDC-2CH3)(H2O)4].H2O.

Linker Installation: Engineering Pore Environment with Precisely Placed Functionalities in Zirconium MOFs

Precise placement of multiple functional groups in a highly ordered metal-organic framework (MOF) platform allows the tailoring of the pore environment, which is required for advanced applications. To realize this, we present a comprehensive study on the linker installation method, in which a stable MOF with coordinatively unsaturated Zr6 clusters was employed and linkers bearing different functional groups were postsynthetically installed. A Zr-MOF with inherent missing linker sites, namely, PCN-700, was initially constructed under kinetic control. Twelve linkers with different substituents were then designed to study their effect on MOF formation kinetics and therefore resulting MOF structures. Guided by the geometrical analysis, linkers with different lengths were installed into a parent PCN-700, giving rise to 11 new MOFs and each bearing up to three different functional groups in predefined positions. Systematic variation of the pore volume and decoration of pore environment were realized by linker installation, which resulted in synergistic effects including an enhancement of H2 adsorption capacities of up to 57%. In addition, a size-selective catalytic system for aerobic alcohol oxidation reaction is built in PCN-700 through linker installation, which shows high activity and tunable size selectivity. Altogether, these results exemplify the capability of the linker installation method in the pore environment engineering of stable MOFs with multiple functional groups, giving an unparalleled level of control.

Metal organic frame material used for visible light photocatalysis, and synthetic method and application thereof

The invention discloses a metal organic frame material used for visible light photocatalysis, and a synthetic method and an application thereof. The method comprises the following steps: uniformly mixing two organic ligands H21 and H22 in an N,N-dimethyl formamide (DMF) solvent, adding ZrCl4, and reacting under the control of acetic acid to obtain the metal organic frame material UIO-68Se, wherein a molar ratio of the two organic ligands is 1:1-1:4. The material can be used as a visible light photocatalyst, and catalyzes a cross-coupling reaction of tertiary amine and a nucleophilic reagent in air environment. The photocatalyst based on the metal organic frame material has the advantages of high activity, good circularity, strong stability and easy separation and recovery.

Robust Metal-Organic Framework Containing Benzoselenadiazole for Highly Efficient Aerobic Cross-dehydrogenative Coupling Reactions under Visible Light

A zirconium(IV)-based UiO-topological metal-organic framework (UiO-68Se) containing benzoselenadiazole was synthesized by an approach of the mixed dicarboxylate struts, which show highly efficient and recycalable photocatalytic activity for aerobic cross-dehydrogenative coupling reactions between tertiary amines and various carbon nucleophiles under visible-light irradiation.

Efficient, Scalable Syntheses of Linker Molecules for Metal-Organic Frameworks

Efficient synthesis protocols for five linkers of immediate interest for use in metal-organic frameworks (MOFs) are presented. The importance of scalable, cost-effective, high-yield processes with simple purifications and few steps is emphasized. The prot

Effect of the functionalisation route on a Zr-MOF with an Ir-NHC complex for catalysis

A new iridium N-heterocyclic carbene (NHC) metallolinker has been synthesised and introduced into a metal-organic framework (MOF), for the first time, via two different routes: direct synthesis and postsynthetic exchange (PSE). The two materials were compared in terms of the Ir loading and distribution using X-ray energy dispersive spectroscopy (EDS), the local Ir structure using X-ray absorption spectroscopy (XAS) and the catalytic activity. The materials showed good activity and recyclability as catalysts for the isomerisation of an allylic alcohol.

Pore surface engineering with controlled loadings of functional groups via click chemistry in highly stable metal-organic frameworks

Reactions of ZrCl4 and single or mixed linear dicarboxylic acids bearing methyl or azide groups lead to highly stable isoreticular metal-organic frameworks (MOFs) with content-tunable, accessible, reactive azide groups inside the large pores. T