Trichloromethylation of carbonyl compounds in the presence of crown ethers

Journal Article · Mon Jan 09 23:00:00 EST 1989 · J. Org. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6009288

Kyazimov, A S; Abdullabekov, I M; Karaev, S F

The reaction of potassium trichloroacetate with carbonyl compounds (aldehydes, acid anhydrides and chlorides) in acetonitrile in the presence of crown ethers leads to an increase of 11-19% in the yield of the C-trichloromethylation products and reduces the reaction time by an order of magnitude. The macrocyclic perhydrodibenzo-18-crown-6 polyether, used as phase-transfer catalyst, is more effective than dibenzo-18-crown-6.

• Research Organization: M. Azizbekov Azerbaidzhan Institute of Petroleum and Chemistry (USSR)
• OSTI ID: 6009288
• Journal Information: J. Org. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Org. Chem. USSR (Engl. Transl.); (United States) Vol. 24:8; ISSN JOCYA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACETATES
ACETONITRILE
ACTIVATION ENERGY
ALCOHOLS
ALDEHYDES
ALKALI METAL COMPOUNDS
ALKYLATING AGENTS
ANHYDRIDES
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLORINATION
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
ENERGY
GLYCOLS
HALOGENATION
HETEROGENEOUS CATALYSIS
HYDROXY COMPOUNDS
KINETICS
METHYLATION
NITRILES
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENE GLYCOLS
POLYMERS
POTASSIUM COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
YIELDS