Carbon Dioxide → 1-(1-Bromo-2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane

HRID 268487Notes

Reaction equation

HRID 268487 reaction equation
[C:1]([CH2:5][O:6][C:7]([CH:10]([F:12])[F:11])([F:9])[F:8])([F:4])([F:3])[F:2].[Br:13]Br.C(=O)=O>>[C:1]([CH:5]([O:6][C:7]([CH:10]([F:11])[F:12])([F:8])[F:9])[Br:13])([F:4])([F:3])[F:2]

Participants

4

Reactant 3

HCID 280Carbon DioxideHCID 24408BromineHCID 164596(1H,1H-Perfluoroethyl)(2H-perfluoroethyl)ether

Product 1

HCID 713661371-(1-Bromo-2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane

Conditions

Temperature
475 °C

Procedure

CF3CH2OCF2CF2H (110 g.) was reacted with bromine (125 g.) by passing a mixture of the two diluted with a stream of nitrogen through a 12 inch × 1 inch glass tube heated to 475°C. The effluent product was condensed in a "Dry Ice" trap and purified by fractional distillation and preparative gas chromatography to give CF3CHBrOCF2CF2H., b.p. 80°C., nD25 1.3155. This product analyzed as follows:

Workup

  1. additiona mixture of the two
  2. additiondiluted with a stream of nitrogen through a 12 inch × 1 inch glass tube
  3. distillationpurified by fractional distillation and preparative gas chromatography

Sources & evidence

ORD record
ord-2b87189c0a9c46669f12f8b3716d5616
Source dataset
uspto-grants-1976_03
Patent number
US03947595

Reaction notes

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