20002-32-8

Basic information

• Product Name: 1,2-diphenyl-1,2-di(o-tolyl)ethane-1,2-diol
• Synonyms: 1,2-diphenyl-1,2-di(o-tolyl)ethane-1,2-diol;1,2-Bis(2-methylphenyl)-1,2-diphenyl-1,2-ethanediol;1,2-Diphenyl-1,2-bis(2-methylphenyl)ethylene glycol;Einecs 243-458-9
• CAS NO: 20002-32-8
• Molecular Formula: C₂₈H₂₆O₂
• Molecular Weight: 394.50484
• EINECS: 243-458-9
• Mol File: 20002-32-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 529°Cat760mmHg
• Flash Point: 229.7°C
• Appearance: /
• Density: 1.165g/cm³
• Vapor Pressure: 5.07E-12mmHg at 25°C
• Refractive Index: 1.633
• CAS DataBase Reference: 1,2-diphenyl-1,2-di(o-tolyl)ethane-1,2-diol(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-diphenyl-1,2-di(o-tolyl)ethane-1,2-diol(20002-32-8)
• EPA Substance Registry System: 1,2-diphenyl-1,2-di(o-tolyl)ethane-1,2-diol(20002-32-8)

Safety Data

• Hazardous Substances Data: 20002-32-8(Hazardous Substances Data)

Usage

General Description

1,2-Diphenyl-1,2-di(o-tolyl)ethane-1,2-diol, also known as di-o-tolylethane diol, is a synthetic organic compound with the chemical formula C24H26 O2. It is a white solid substance with low solubility in water. This chemical is primarily used as an intermediate in the production of organic compounds, such as pharmaceuticals and agrochemicals. It has also been studied for its potential use in radical polymerization processes. Di-o-tolylethane diol has limited information available regarding its toxicity and environmental impact, so caution should be exercised when handling and using this chemical.

InChI:InChI=1/C28H26O2/c1-21-13-9-11-19-25(21)27(29,23-15-5-3-6-16-23)28(30,24-17-7-4-8-18-24)26-20-12-10-14-22(26)2/h3-20,29-30H,1-2H3

Upstream product

• 108-88-3 toluene 
• 98-88-4 benzoyl chloride 
• 71-43-2 benzene 
• 933-88-0 ortho-toluoyl chloride 
• 64-17-5 ethanol 
• 131-58-8 2-Methylbenzophenone 
• 64-19-7 acetic acid 
• 60-29-7 diethyl ether 
• 100-58-3 phenylmagnesium bromide 
• 677-22-5 tert-butylmagnesium chloride 
• 75-16-1 methylmagnesium bromide 
• 4294-57-9 para-methylphenylmagnesium bromide 
• 87-24-1 ethyl 2-methylbenzoate 

Downstream Products

• 5472-13-9 2-methylbenzhydrol 
• 131-58-8 2-Methylbenzophenone 
• 120309-24-2 2,2-diphenyl-1,2-di-o-tolyl-ethanone 

Relevant articles and documents

NEW METHODOLOGY IN DETERMINING EVIDENCE FOR SINGLE ELECTRON TRANSFER IN THE REACTION OF GRIGNARD REAGENTS WITH KETONES

A new method is reported to determine the existence of single electron transfer in the reaction of Grignard reagents with ketones.The method involves the determination of pseudo-first order rate constants by following the rate of disappearance of the paramagnetic intermediate and relating the rate of this disappearance to the appearance of the product.The reactions of methyl-, phenyl- and t-butyl-Grignard reagents with substituted benzophenones were examined.This method should be applicable to a wide range of organometallic reactions.

Organometallic Reaction Mechanisms. 17. Nature of Alkyl Transfer in Reactions of Grignard Reagents with Ketones. Evidence for Radical Intermediates in the Formation of 1,2-Addition Product Involving Tertiary and Primary Grignard Reagents

When a Grignard reagent reacts with an aromatic ketone, a radical anion-radical cation pair is formed which can collapse to give 1,2-addition product or dissociate to form a radical anion and a free radical within the solvent cage which in turn can collapse to 1,2-addition product or a conjugate addition product or escape the solvent cage to form pinacol.The 1,2-addition products, which form after dissociation of the radical anion-radical cation pair, show free-radical character as indicated by the cyclized 1,2-addition products formed from the reaction of a tertiary Grignard reagent probe with benzophenone in THF and from the reaction of a primary Grignard reagent probe (neooctenyl Grignard reagent) with benzophenone in ether.The 1,6-addition products, which come about after dissociation of the radical anion-radical cation pair, show free-radical character as evidenced by the cyclized 1,6-addition products formed in all of the reactions which involve the tertiary probe Grignard reagent (in all solvents studied) with benzophenone and 2-MBP and also in the reaction of the neooctenyl probe Grignard reagent with 2-MBP.