2136-95-0

Basic information

• Product Name: Benzene, pentachloro(dichloromethyl)-
• CAS NO: 2136-95-0
• Molecular Formula: C7HCl7
• Molecular Weight: 333.256
• Mol File: 2136-95-0.mol

Chemical Properties

• CAS DataBase Reference: Benzene, pentachloro(dichloromethyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, pentachloro(dichloromethyl)-(2136-95-0)
• EPA Substance Registry System: Benzene, pentachloro(dichloromethyl)-(2136-95-0)

Safety Data

• Hazardous Substances Data: 2136-95-0(Hazardous Substances Data)

Upstream product

• 98-87-3 benzylidene dichloride 
• 877-11-2 pentachlorotoluene 
• 861316-89-4 2,2,4,6,6-pentachloro-5-methyl-cyclohex-4-ene-1,3-dione 
• 67-66-3 chloroform 
• 608-93-5 pentachlorobenzene 
• 3225-61-4 perchlorodiphenylmethyl radical 
• 108-88-3 toluene 
• 7782-50-5 chlorine 
• 2605-69-8 octachlorotoluene 
• 64-19-7 acetic acid 

Downstream Products

• 50-74-8 2,3,4,5-tetrachlorobenzoic acid 
• 105633-29-2 αH,4H,4'H-(Tridecachlorotriphenyl)methane 
• 105633-28-1 1,2,3,4,5-Pentachloro-6-[chloro-(2,4,6-trichloro-phenyl)-methyl]-benzene 
• 33119-38-9 α-chlorobis(pentachlorophenyl)methane 
• 134757-89-4 αH,α'H-icosachloro-α,α,α'-triphenyl-p-xylene 
• 118-74-1 hexachlorobenzene 
• 134757-91-8 αH,αH,α'H-nonadecachloro-α,α',α'-triphenyl-p-xylene 
• 134757-90-7 α'H,α'H-nonadecachloro-4-benzyltriphenylmethyl radical 
• 33240-61-8 αH-Pentadecachlorotriphenylmethane 
• 79839-44-4 α-H,4-H-tetradecachlorotriphenylmethane 
• 105633-32-7 C₁₉H₆Cl₁₀ 
• 105633-30-5 Bis-(2,4,6-trichlorophenyl)-methane 
• 105633-31-6 C₁₉H₂Cl₁₄ 

Relevant articles and documents

Photochemical Behavior of Stable Free Radicals: The Photochemistry of Perchlorodiphenylmethyl Radical

The excitation of perchlorodiphenylmethyl radical (PDM) at 530 nm leads to the lowest excited doublet, D1 (τ = 31 ns), from which emission is observed (Φ = 1 x 10-3 +/- 0.0003).This state is quenched by electron donors and acceptors at a rate at or close to diffusion control and at much slower rates by oxygen and hydrogen atom donors.Fragmentation of PDM (Φd = 0.06) occurs from a higher excited doublet (Dn, n > = 2) producing intermediates that are trapped by O2, chlorine, or hydrogen donors, yielding products 1-6.Experimental evidence suggests a structure-photoreactivity correlation in the perchlorinated arylmethyl radicals in which the partitioning between photochemical cyclization or fragmentation depends on the twist angle between the appended phenyl rings.

An Easy, High-yield Synthesis of Highly Chlorinated Mono-, Di- and Triarylmethanes

A simple, direct, high-yield Friedel-Crafts synthesis of highly chlorinated, overcrowded αH-aryl, αH-diaryl, and αH-triarylmethanes is described.The latter compounds are most valuable chemical precursors of inert free radicals, which are frequently obtain

DESTRUCTIVE CHLORINATION OF ALKYLBENZENES ON HETEROGENEOUS CATALYSTS.

A study was made of the destructive chlorination of alkylbenzenes in the vapor phase on metal oxides and metal chlorides. This work shows that 380-400 degree C, 11-12 sec contact time, 0. 3-0. 8 mass % MoO//3 on alumina, 7-10% stoichiometric excess of chlorine, and 1:9 toluene/chlorine mole ratio were optimal for the chlorination of toluene to give C//6Cl//6 and CCl//4. The optimal conditions for the preparation of pentachlorobenzyl chloride were 295-320 degree C, 18-22 sec contact time, 1:6 toluene/chlorine mole ratio, and 4-8. 5 mass % MgCl//2 on KSK silica gel. The optimal yields of CCl//4 and C//6Cl//6 were 97. 4-98. 2 and 93. 8-96. 3 mole %, respectively, with 91-93 mole % conversion of chlorine.