34973-39-2

Upstream product

• 78-67-1 2,2'-azobis(isobutyronitrile) 
• 79-01-6 Trichloroethylene 
• 103-19-5 di(p-tolyl) disulfide 
• 1142-19-4 4,4'-dichlorodiphenyl disulfide 

Downstream Products

• 42769-38-0 1,1,3,4-tetrachloro-1,3-butadiene 
• 25503-12-2 1-phenyl-4-phenylazo-1H-pyrazole 
• 94632-60-7 3,3,4,4-Tetrachlor-1-(cyclohexylthio)-1-butin 
• 94632-61-8 1,1,2-Trichlor-4,4-bis(cyclohexylthio)-1,3-butadien 
• 32694-76-1 1,1,1,2,3,3,4,4-octachlorobutane 
• 94632-57-2 3,3,4,4-Tetrachlor-1-phenylthio-1-butin 
• 94632-58-3 1,1,2-Trichlor-4,4-bis(phenylthio)-1,3-butadien 
• 94632-59-4 1,2-Dichlor-1,4,4-tris(phenylthio)-1,3-butadien 
• 62897-26-1 tetrakis(4-chlor-phenylthio)butatrien 
• 72475-34-4 1,1,2,4,4-pentakis-(4-chloro-phenylsulfanyl)-buta-1,3-diene 
• 77301-83-8 1,2-Dichlor-1,4,4-tris(4-chlor-phenylthio)-1,3-butadien 
• 62897-14-7 Trichlorobut-3-en-1-ynylsulfanyl-cyclohexane 
• 195132-19-5 1,1,2-trichloro-4,4-di(4-nitrophenylthio)-1,3-butadiene 
• 1268626-16-9 1,1,2-trichloro-4-(2-carboxy-phenyl-thio)-1-buten-3-yne 

Relevant academic research and scientific papers

CHEMICAL CONVERSIONS OF TRICHLOROETHYLENE.

The purpose of this work is to study the causes of decomposition of trichloroethylene under production conditions, and to investigate the products formed. Experimental results show that among the high-boiling impurities in technical trichloroethylene, dichloroacetic acid, dichloroacetyl chloride, and hexachlorobutene were isolated. Formation of hexachlorobutene in trichloroethylene on heating is initiated by peroxides present as impurities in trichloroethylene. Decrease of pH of the aqueous extract when trichloroethylene is heated presumably occurs mainly as the result of hydrolysis of dichloroacetyl chloride present in trichloroethylene or formed from intermediate products of trichloroethylene oxidation.

FREE-RADICAL REACTION OF DIARYL DISULFIDES WITH TRI- AND TETRACHLOROETHYLENES

The free-radical reaction of diaryl disulfides ArSSAr with CHCl=CCl2 leads to aryl β,β- and α,β-dichlorovinyl sulfides, trichlorovinyl sulfides, and the trichloroethylene dimer 1,1,3,3,4,4,-hexachloro-1-butene.In the reaction of diaryl disulfides with tetrachloroethylene aryl trichlorovinyl sulfides and hexachloro-1,3-butadiene are formed.A reaction mechanism involving reaction of the vinyl radicals CCl2=C.Cl, CCl2=C.H, adn CHCl-C.Cl with the arylthiyl radical is proposed.

INVESTIGATION IN THE REGION OF ACYL PEROXIDES. XLVII. REACTION OF ACETYL PEROXIDE WITH TRICHLOROETHYLENE

The main products from the reaction of acetyl peroxide with trichloroethylene are 1,1,3,3,4,4-hexachloro-1-butene (dimer) and 1,1,3,3,4-pentachloro-1-pentene, the yields of which amount to 4.0 and 0.6 mole respectively per mole of acetyl peroxide.It was shown that dehydrochlorination of the dimer by the action of ferric chloride is a convenient preparative method for the production of 2-H-pentachloro-1,3-butadiene.