14186-60-8

Basic information

• Product Name: Dimethyl 2-methylterephthalate
• Synonyms: dimethyl 2-methylterephthalate;Dimethyl 2-methyl-1,4-benzenedicarboxylate;2-Methylterephthalic acid dimethyl ester;1,4-Benzenedicarboxylic acid, 2-methyl-, 1,4-dimethyl ester;1,4-Benzenedicarboxylic acid, 2-methyl-, dimethyl ester;Dimethyl 3-methylterephthalate;Einecs 238-039-2;Dimethyl 2-methylbenzene-1,4-dicarboxyalate
• CAS NO: 14186-60-8
• Molecular Formula: C11H12O4
• Molecular Weight: 208.21
• EINECS: 238-039-2
• Mol File: 14186-60-8.mol
• Article Data: 14

Chemical Properties

• Melting Point: 75.5 °C
• Boiling Point: 295.2°Cat760mmHg
• Flash Point: 143.7°C
• Appearance: /
• Density: 1.147g/cm³
• Vapor Pressure: 0.00155mmHg at 25°C
• Refractive Index: 1.513
• Storage Temp.: 2-8°C
• CAS DataBase Reference: Dimethyl 2-methylterephthalate(CAS DataBase Reference)
• NIST Chemistry Reference: Dimethyl 2-methylterephthalate(14186-60-8)
• EPA Substance Registry System: Dimethyl 2-methylterephthalate(14186-60-8)

Safety Data

• Hazardous Substances Data: 14186-60-8(Hazardous Substances Data)

Usage

General Description

Dimethyl 2-methylterephthalate is a chemical compound with the molecular formula C11H12O4. It is commonly used as a precursor for the production of polyethylene terephthalate (PET), which is a widely used plastic in the manufacturing of bottles, textiles, and other consumer products. Dimethyl 2-methylterephthalate is synthesized through the esterification of 2-methylterephthalic acid with methanol. Dimethyl 2-methylterephthalate is known for its high purity and low toxicity, making it a valuable ingredient in the production of PET and other polymers. Additionally, it is considered to be a stable and relatively inert substance, with minimal environmental impact.

InChI:InChI=1/C11H12O4/c1-7-6-8(10(12)14-2)4-5-9(7)11(13)15-3/h4-6H,1-3H3

Upstream product

• 186581-53-3 diazomethane 
• 5156-01-4 2-methylterephthalic acid 
• 83345-65-7 5-(2-Methyl-4-isopropylphenyl)-5-oxo-pentansaeure 
• 18643-86-2 dimethyl 2-bromoterephthalate 
• 594-27-4 tetramethylstannane 
• 67-56-1 methanol 
• 1257982-58-3 dimethyl 2-methylcyclohex-5-ene-1,4-dicarboxylate 
• 55984-93-5 2-methyl-1,4-dicyanobenzene 

Downstream Products

• 116934-87-3 2-methylbenzene-1,4-dicarboxylic acid 1-methyl ester 
• 1203953-02-9 methyl 2-(4-methoxybenzyl)-1-oxoisoindoline-5-carboxylate 
• 57834-13-6 2-bromomethyl-1,4-terephthalic acid dimethyl ester 

Relevant articles and documents

An: In situ approach to functionalize metal-organic frameworks with tertiary aliphatic amino groups

Metal-catalyzed reductive amination of formyl-containing linkers with N,N-dialkylformamide solvents is concomitant with the solvothermal coordination assembly, leading to novel MOFs functionalized with tertiary aliphatic amino groups. This illustrates a novel one-pot strategy to functionalize MOFs through in situ organic transformation. The UiO-66 MOFs partially functionalized with the amino groups are highly active heterogeneous catalysts for Knoevenagel condensation.

Ionic liquid-decorated COF and its covalent composite aerogel for selective CO2 adsorption and catalytic conversion

Atmospheric CO2 is closely related to the greenhouse effect. Therefore, new practical materials and techniques for highly selective CO2 adsorption and catalytic conversion are imperative. Covalent composites of covalent organic frameworks (COFs) with polymers (oligomers) might be a promising approach to meeting the multifaceted requirements of CO2 treatment. Herein, a novel COF-chitosan composite aerogel (COF-IL@chitosan) was designed and fabricated by chemical crosslinking of an allyl-imidazolium ionic liquid-decorated COF (COF-IL) with a thiol-attached chitosan (chitosan-SH) binder via a photoinduced thiol-ene reaction. The crystalline structure, highly selective CO2 adsorption and catalytic conversion features of COF-IL were found to be well maintained in the composite aerogel. The generated covalently coupled COF-chitosan composite material COF-IL@chitosan was found to be robust, uniform and processable even with a remarkably high COF loading (up to 80 wt%). More importantly, the processable COF-IL@chitosan aerogel could be readily shaped into a simplified fixed-bed reactor model via a facile templated freeze-drying procedure, and a scaled-up recyclable CO2 cycloaddition reaction was realized.

Imidazole sulfonic acid-based metal organic framework as well as preparation method and application thereof

The invention provides a metal organic framework based on imidazole sulfonic acid as well as a preparation method and application. The metal organic framework based on the imidazole sulfonic acid is obtained by synthesizing and modifying a metal organic framework based on an imidazole ligand through a sulfonic compound; a chemical structural formula of the metal organic framework based on the imidazole ligand is [Zr6O4(OH)4L6]n, wherein n is a natural number more than 0; L is an organic ligand L and a chemical structural formula of the organic ligand L is show in the description; a synthesis method of the organic ligand L comprises the following steps: firstly, enabling 3-methyl-terephthalic acid to react to obtain an intermediate A; secondly, taking the intermediate A and bromosuccinimide as raw materials and reacting to obtain an intermediate B; thirdly, taking the intermediate B and imidazole as raw materials and reacting to obtain an intermediate C; finally, carrying out hydrolysis reaction on the intermediate C to prepare the organic ligand L. The metal organic framework based on the imidazole sulfonic acid has a catalytic effect on benzaldehyde under normal pressure and has the characteristics of moderate reaction conditions, short reaction time, less dosage of a catalyst and capability of being recycled and repeatedly utilized.

Metal-organic framework material modified based on alkyl sulfhydryl and synthesis method thereof

The invention provides a metal-organic framework material modified based on alkyl sulfhydryl and a synthesis method thereof. The general formula of the metal-organic framework material is expressed as a formula I which is Zr6O4(OH)4(L)x. In the formula I, x is greater than or equal to 4 and is less than or equal to 6, and L has a structure as shown in a formula II. According to the metal-organic framework material, the L with the structure as shown in the formula II is used as a ligand, and L reacts with ZrCl4 to generate a Zr6O4 metal cluster three-dimensional frame structure, so that the metal-organic framework material has high chemical stability and heat stability; in addition, the sulfhydryl functional group in the metal-organic framework material is difficultly oxidized. Experiment results show that the frame can be collapsed when the highest temperature of the metal-organic framework material can reach 420 DEG C or higher; after the metal-organic framework material with the general formula expressed as the formula I is soaked in a strong alkali solution with a pH value of 12 and a strong acid solution with a pH value of 1 for 3 days, X-ray powder diffraction shows that the metal-organic framework material can still retain the basic framework structure.