6422-84-0

Basic information

• Product Name: Terephthalic acid diisopropyl ester
• Synonyms: Terephthalic acid diisopropyl ester;Diisopropyl terephthalate;dipropan-2-yl benzene-1,4-dicarboxylate
• CAS NO: 6422-84-0
• Molecular Formula: C₁₄H₁₈O₄
• Molecular Weight: 250.2903
• Mol File: 6422-84-0.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 275.3°Cat760mmHg
• Flash Point: 142.6°C
• Appearance: /
• Density: 1.078g/cm³
• Vapor Pressure: 0.00512mmHg at 25°C
• Refractive Index: 1.5
• Storage Temp.: 2-8°C
• CAS DataBase Reference: Terephthalic acid diisopropyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Terephthalic acid diisopropyl ester(6422-84-0)
• EPA Substance Registry System: Terephthalic acid diisopropyl ester(6422-84-0)

Safety Data

• Hazardous Substances Data: 6422-84-0(Hazardous Substances Data)

Usage

InChI:InChI=1/C14H18O4/c1-9(2)17-13(15)11-5-7-12(8-6-11)14(16)18-10(3)4/h5-10H,1-4H3

Upstream product

• 201230-82-2 carbon monoxide 
• 111160-45-3 isopropyl 4-iodobenzoate 
• 67-63-0 isopropyl alcohol 
• 624-38-4 para-diiodobenzene 
• 623-27-8 terephthalaldehyde, 
• 100-21-0 terephthalic acid 
• 75-26-3 isopropyl bromide 
• 100-20-9 terephthaloyl chloride 
• 75-30-9 2-iodo-propane 
• 120-61-6 1,4-benzenedicarboxylic acid dimethyl ester 

Downstream Products

• 20576-81-2 terephthalic acid monoisopropyl ester 

Relevant articles and documents

Carbon monoxide is used as a source of halogen compound heterogeneous palladium catalyst in the presence of the aldehyde carbonyl compound by reaction carbonylation method (by machine translation)

[Problem] catalyst and the presence of carbon monoxide, the halogen compound is a carbonyl compound in the carbonylation reaction, catalysts or carbon monoxide source technique has problems. [Solution] the presence of the catalyst and the carbon monoxide, the halogen compound is carbonylation reaction method for producing a carbonyl compound, As a heterogeneous palladium catalyst, carbon monoxide is produced from an aldehyde carbonyl compound used in the method. [Drawing] no (by machine translation)

Preparation method of terephthalic acid and diester thereof

The invention discloses a preparation method of terephthalic acid and diester thereof. Specifically, under the action of a supported metal catalyst, 2-cyclohexene-1,4-dicarboxylic acid undergoes catalytic dehydro-aromatization in a polar solvent or a nonpolar solvent so as to prepare terephthalic acid and diester. The polar solvent is water, methanol, ethanol, n-propanol, isopropanol, n-butanol, glycol dimethyl ether and diglyme. The nonpolar solvent is one or more than two components selected from a group consisting of n-hexane, n-heptane, normal octane, cyclohexane, benzene and toluene. A metal active component of the supported metal catalyst is non-noble metal and/or noble metal. A carrier for the supported metal catalyst is one or more than two components selected from a group consisting of a carbon carrier, nanoscale metal oxide, nanometer nonmetal oxide and a molecular sieve. When conversion rate of 2-cyclohexene-1,4-dicarboxylic acid is 95% and above, selectivity of terephthalic acid or diester of terephthalic acid can reach 90%.

Ionic liquids as solvent for efficient esterification of carboxylic acids with alkyl halides

The selective esterification of carboxylic acid derivatives with a variety of alkyl halides was carried out using ionic liquid as solvent in the presence of triethylamine. The reaction was found to proceed under relatively mild conditions with excellent conversions (up to 99%) and selectivities. The ionic liquid was recycled and reused. TUeBITAK.