FIELD: chemistry.
SUBSTANCE: hydrogen donor used is methylene chloride, quaternary ammonium salts used are compounds of general formula R3R'NCl or R2R'2NCI, where R=C1-C18 - alkyl, R' - C1-C18 -alkyl, chloroalkyl or benzyl in molar ratio salt: copper equal to 8-10:1, concentration of copper is 0.1-0.5 g/l. The process is carried out at 180-200°C with molar ratio of carbon tetrachloride and methylene chloride equal to 1.5-6:1. The catalyst can be added in 2-4 portions after 90-120 minutes each.
EFFECT: selective method of producing chloroform without using scarce hydrogen donors.
2 cl, 2 tbl, 17 ex
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