An Efficient Synthesis of 1-chloro-2,2-difluoroethylene via the Reductive Dechlorination of 1,2,2-trichloro-1,1-difluoroethane

doi:10.3184/096034013X13644802548720

Paper

An Efficient Synthesis of 1-chloro-2,2-difluoroethylene via the Reductive Dechlorination of 1,2,2-trichloro-1,1-difluoroethane

Published May 1, 2013 · Nong Wang, Lijuan Yang, Shaoji Xiang

Journal of Chemical Research

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Abstract

1-Chloro-2,2-difluoroethylene was prepared from 1,2,2-trichloro-1,1-difluoroethane by reductive dechlorination in the presence of zero-valent zinc. Eleven different solvents were investigated and the best results were obtained in methanol, dimethyl formamide and ethanol at 80 °C. A large-scale experiment using ethanol as a solvent gave 1-chloro-2,2-difluoroethylene in high yield. These results provide a method for producing 1-chloro-2,2-difluoroethylen e on an industrial scale because 1,2,2-trichloro-1,1-difluoroethane is the waste material arising from 2,2-dichloro-1,1,1-trifluoroethane production. These results can also provide a method for solving the recycling problem of 1,2,2-trichloro-1,1-difluoroethane in 2,2-dichloro-1,1,1-trifluoroethane production.

Study Snapshot

Reductive dechlorination in methanol, dimethyl formamide, and ethanol at 80°C effectively synthesizes 1-chloro-2,2-difluoroethylene, offering a method for industrial scale production and waste recycling.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

An Efficient Synthesis of 1-chloro-2,2-difluoroethylene via the Reductive Dechlorination of 1,2,2-trichloro-1,1-difluoroethane

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References

Synthesis and copolymerization of fluorinated monomers bearing a reactive lateral group. XX. Copolymerization of vinylidene fluoride with 4-bromo-1,1,2-trifluorobut-1-ene

The copolymerization of vinylidene fluoride with 4-bromo-1,1,2-trifluorobut-1-ene (C4 Br) demonstrates high reactivity ratios and potential for chemical modifications.

Free radical addition of cyclopentane and cyclohexane to halogeno derivatives of 1,2-difluoroethene

Free radical addition reactions between cyclopentane and cyclohexane produce difluoromethylene-substituted adducts in reasonable yield, leading to new polyhalogenated alkenes.

Condensation of refrigerants in horizontal microfin tubes: comparison of prediction methods for heat transfer

The correlations and theoretical model proposed by Wang et al. are the most accurate for predicting heat transfer coefficients during condensation of refrigerants in horizontal microfin tubes for all tested refrigerants.

Free-radical chemistry

Free-radical chemistry of trifluoroethene (3FE) enables chain-shortening, fluorination, and polymerization of telomers into fluorinated polyethers.

Heterogeneous catalyzed synthesis of 1,1,1,2-tetrafluoroethane from 1,1,1,2-tetrachloroethane — thermodynamics and reaction pathways

The heterogeneous catalyzed synthesis of 1,1,1,2-tetrafluoroethane from 1,1,1,2-tetrachloroethane produces fluorinated haloalkanes and halo-olefins, with reaction conditions influencing the reaction

Thermal conductivity of refrigerants R123, R134a, and R125 at low temperatures

The thermal conductivity of refrigerants R123, R134a, and R125 at low temperatures is within 2-3 % of their theoretical values, with R123 having the highest conductivity at -114°C and R134a having the lowest conductivity at -IOMPa.

Effect of refrigerant oil additive on R134a and R123 boiling heat transfer performance

An additive can enhance the heat transfer performance of R134a/POE mixtures by 73% to 95%, while causing no change in R123/mineral oil mixtures.

Citations

The Spectroscopic Characterization of Halogenated Pollutants through the Interplay between Theory and Experiment: Application to R1122

This study accurately predicts the structural, rotational, and vibrational spectroscopic properties of R1122, aiding in environmental monitoring and estimating its global warming potential.