603-39-4

Basic information

• Product Name: phenyldi-p-tolylmethane
• Synonyms: phenyldi-p-tolylmethane
• CAS NO: 603-39-4
• Molecular Formula: C₂₁H₂₀
• Molecular Weight: 272.3835
• Mol File: 603-39-4.mol
• Article Data: 7

Chemical Properties

• Melting Point: 56°C
• Boiling Point: 350.44°C (rough estimate)
• Appearance: /
• Density: 1.0400 (estimate)
• Refractive Index: 1.7640 (estimate)
• CAS DataBase Reference: phenyldi-p-tolylmethane(CAS DataBase Reference)
• NIST Chemistry Reference: phenyldi-p-tolylmethane(603-39-4)
• EPA Substance Registry System: phenyldi-p-tolylmethane(603-39-4)

Safety Data

• Hazardous Substances Data: 603-39-4(Hazardous Substances Data)

Upstream product

• 100-52-7 benzaldehyde 
• 108-88-3 toluene 
• 120309-27-5 1,2-diphenyl-2,2-di-p-tolyl-ethanone 
• 64-17-5 ethanol 
• 860579-48-2 phenyl-di-p-tolyl-acetonitrile 
• 6266-56-4 bis(4-methylphenyl)phenylmethanol 
• 93-89-0 benzoic acid ethyl ester 
• 106-38-7 para-bromotoluene 
• 71-43-2 benzene 
• 613-90-1 benzoyl cyanide 
• 7664-93-9 sulfuric acid 
• 7021-09-2 rac-methoxyphenylacetic acid 
• 69239-35-6 Chlorbis(4-methylphenyl)phenylmethan 
• 462-06-6 fluorobenzene 

Downstream Products

• 1258329-46-2 [bis(4-methyl-2,3,5,6-tetrachlorophenyl)-(2,3,4,5,6-pentachlorophenyl)]methane 
• 155202-94-1 (4,4'-Bis(trichloromethyl)triphenyl)methane 
• 100-21-0 terephthalic acid 

Relevant articles and documents

Benzylic Phosphates in Friedel-Crafts Reactions with Activated and Unactivated Arenes: Access to Polyarylated Alkanes

Easily reachable electron-poor/rich primary and secondary benzylic phosphates are suitably used as substrates for Friedel-Crafts benzylation reactions with only 1.2 equiv activated/deactivated arenes (no additional solvent) to access structurally and electronically diverse polyarylated alkanes with excellent yields and selectivities at room temperature. Specifically, diversely substituted di/triarylmethanes are generated within 2-30 min using this approach. A wide number of electron-poor polyarylated alkanes are easily accomplished through this route by just tuning the phosphates.

Superacid BF3-H2O promoted benzylation of arenes with benzyl alcohols and acetates initiated by trace water

A convenient procedure employing simple starting materials benzyl alcohols and acetates as the benzyl donors to assemble a series of diarylalkanes through benzylation of arenes using in situ prepared superacid BF3-H 2O as an efficient promoter has been developed. The beneficial role of water in the reaction has been clarified with combination of control experiments and 11B NMR analysis. This reaction is a self-promoted model, which is triggered by the trace of water and continuously promoted by self released by-product water (or carboxylic acid). A wide range of substrates are investigated and the moderate to excellent yields and the good regioselectivities for secondary benzyl alcohols as well as arenes bearing electron-withdrawing groups have been achieved. As a result, moisture in the reaction system has been utilized as an efficient initiator in all benzylation cases.

Synthesis and electron transfer characteristics of a neutral, low-band-gap, mixed-valence polyradical

A polyradical consisting of alternating triarylamine and perchlorotriphenylmethyl radical moieties was synthesized by Horner-Emmons reaction. This compound is the first polymeric neutral mixed-valence compound that shows an intervalence charge transfer (I