643-94-7

Basic information

• Product Name: o-phenylene dibenzoate
• Synonyms: o-phenylene dibenzoate;1,2-Bis(benzoyloxy)benzene;Dibenzoic acid o-phenylene ester;Pyrocatechol dibenzoate;(2-benzoyloxyphenyl) benzoate
• CAS NO: 643-94-7
• Molecular Formula: C₂₀H₁₄O₄
• Molecular Weight: 318.32276
• EINECS: 211-405-9
• Mol File: 643-94-7.mol
• Article Data: 13

Chemical Properties

• Boiling Point: 513.8°C at 760 mmHg
• Flash Point: 265.8°C
• Appearance: /
• Density: 1.242g/cm³
• Vapor Pressure: 1.14E-10mmHg at 25°C
• Refractive Index: 1.615
• CAS DataBase Reference: o-phenylene dibenzoate(CAS DataBase Reference)
• NIST Chemistry Reference: o-phenylene dibenzoate(643-94-7)
• EPA Substance Registry System: o-phenylene dibenzoate(643-94-7)

Safety Data

• Hazardous Substances Data: 643-94-7(Hazardous Substances Data)

Usage

General Description

O-phenylene dibenzoate, also known as diphenyl ortho-phthalate or benzene-1,2-dicarboxylic acid, is an organic compound with the chemical formula C20H14O4. It is commonly used as a plasticizer in the production of various polymers and resins, particularly polyvinyl chloride (PVC). As a plasticizer, O-phenylene dibenzoate helps to improve the flexibility and durability of PVC products, making them more resistant to breaking and harsh environmental conditions. It is also used in the production of adhesives, lacquers, and coatings. O-phenylene dibenzoate is considered to be a low-toxicity chemical, but prolonged exposure to high levels may cause skin irritation and respiratory issues.

InChI:InChI=1/C20H14O4/c21-19(15-9-3-1-4-10-15)23-17-13-7-8-14-18(17)24-20(22)16-11-5-2-6-12-16/h1-14H

Upstream product

• 110-86-1 pyridine 
• 98-88-4 benzoyl chloride 
• 120-80-9 benzene-1,2-diol 
• 93-97-0 benzoic acid anhydride 
• 65-85-0 benzoic acid 
• 591-50-4 iodobenzene 
• 13939-06-5 molybdenum hexacarbonyl 
• 91-16-7 1,2-dimethoxybenzene 
• 4442-68-6 2-Chloro-1,3,2-benzodioxastibole 
• 4442-67-5 2-chloro-1,3,2-benzodioxa-arsole 
• 91201-63-7 2a,8a-dihydro-2a,8a-diphenylbenzo<1,2>dioxeto<3,4e><1,4>dioxin 
• 1484-50-0 desyl bromide 
• 91201-75-1 2,3-Diphenyl-2,3-dihydro-benzo[1,4]dioxin-2-ol 
• 75694-46-1 2,3-diphenylbenzo-1,4-dioxin 

Downstream Products

• 5876-92-6 2-hydroxyphenyl benzoate 
• 97971-72-7 2-benzoyl-6-benzoyloxy phenol 
• 97971-73-8 3,4-dibenzoylbenzene-1,2-diol 
• 10425-11-3 3,4-dihydroxybenzophenone 
• 150443-19-9 1,2-bis-benzoyloxy-4-nitro-benzene 
• 94-46-2 isoamyl benzoate 
• 120-80-9 benzene-1,2-diol 

Relevant articles and documents

Synthesis of industrially important aromatic and heterocyclic ketones using hierarchical ZSM-5 and Beta zeolites

Hierarchical ZSM-5 and Beta zeolites were investigated in the synthesis of wide range of industrially important aromatic/heterocyclic ketones by Friedel-Crafts acylation and benzoylation reactions. For comparative study, conventional ZSM-5 and Beta, and amorphous mesoporous Al-MCM-41 were investigated. Hierarchical zeolites were prepared by multi-ammonium structure directing agents whereas conventional zeolites were prepared by mono-ammonium structure directing agents. Among the catalysts investigated in this study, hierarchical Beta exhibited the highest reactant conversion in the acylation and benzoylation reactions. In this study, the systematic assessment of the catalytic activity of acid catalysts for wide range of aromatic and heterocyclic compounds is shown under one umbrella. To the best of our knowledge, these reactions over hierarchical zeolites (ZSM-5 and Beta) are reported here for the first time. Structure activity relationship is explained based on the physico-chemical properties, molecular size, reactivity of reactants, and reaction mechanism. Catalysts can be easily recovered and reused with negligible loss in the catalytic activity.

HF-Pyridine: A versatile promoter for monoacylation/sulfonylation of phenolic diols and for direct conversion of t-butyldimethylsilyl ethers to the corresponding acetates

Monoacylation and trifluoromethanesulfonylation of phenolic diols were achieved by the aid of HF-pyridine, whereas diacylation occurred with pyridine alone. Furthermore, HF-pyridine was found to promote the direct conversion of t-butyldimethylsilyl ethers to the corresponding acetates.

A simple and efficient transprotection of aryl methyl ether to aryl benzoate under microwave activation

A simple and efficient method for the transprotection of aryl methyl ether to easily cleavable arylbenzoate mediated by microwave activation has been developed. One important feature of this method is its high tolerance towards sensitive functionalities and to some extent to bulky environment.