Potassium Hydroxide → 3,3,4,4-Tetrafluoro-4-iodo-1-butene

HRID 974438Notes

Reaction equation

HRID 974438 reaction equation
[I:1][C:2]([F:10])([F:9])[C:3]([F:8])([F:7])[CH2:4][CH2:5]I.[OH-].[K+].[OH-].[Na+].I>>[I:1][C:2]([F:10])([F:9])[C:3]([F:8])([F:7])[CH:4]=[CH2:5]

Participants

5

Reactant 4

HCID 14797Potassium HydroxideHCID 14798Sodium HydroxideHCID 24841Hydrogen iodideHCID 697881,1,2,2-Tetrafluoro-1,4-diiodobutane2×

Product 1

HCID 1185553,3,4,4-Tetrafluoro-4-iodo-1-butene

Procedure

the 1,4-diiodo-1,1,2,2-tetrafluorobutane reacting with at least a stoichiometric amount of potassium hydroxide or sodium hydroxide in the form of an approximately 10 to 60% strength by weight aqueous solution at a temperature of 20° to 100° C. and in the presence of a phase transfer catalyst in an amount of 0.1 to 5 mol %, relative to the amount of 1,4-diiodo-1,1,2,2-tetrafluorobutane, to eliminate hydrogen iodide, and isolating 1-iodo-1,1,2,2-tetrafluoro-3-butene from this reaction product,

Workup

  1. customat a temperature of 20° to 100° C.

Sources & evidence

ORD record
ord-546478dec84945d18bcb09dfc2db5ff8
Source dataset
uspto-grants-1991_11
Patent number
US05068415

Reaction notes

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