1,3-Butadiene → Butadiene pentadiene

HRID 2397170Notes

Reaction equation

HRID 2397170 reaction equation
[CH2:1]=[CH:2][CH:3]=[CH2:4].[CH2:5]=[CH:6][CH:7]=[CH:8][CH3:9]>[Cl-].FC(F)(F)C([O-])=O.[Ni+2].C1(C)C=CC=CC=1>[CH2:1]=[CH:2][CH:3]=[CH2:4].[CH2:5]=[CH:6][CH:7]=[CH:8][CH3:9]

Participants

5

Reactant 2

HCID 78451,3-ButadieneHCID 15301Penta-1,3-diene

Product 1

HCID 73474621Butadiene pentadieneYield 103.2%

Reagents, catalysts & solvents 2

HCID 86734705Nickel trifluoracetate chlorideCatalystHCID 1140TolueneSolvent

Procedure

40 cc of toluene, 31 g of 1,3-butadiene and 27 g of 1,3-pentadiene have been added in a reactor to 0.42 g of nickel trifluoroacetate chloride. After 4 hours of reaction at 60° C., we have isolated 50 g of a butadiene-pentadiene copolymer containing 60% of butadiene units and 40% of pentadiene units. Its microstructure consisted of more than 90% of 1,4 units and its average molecular weight by number was about 4,000 (polymer E).

Workup

  1. customAfter 4 hours of reaction at 60° C.

Sources & evidence

ORD record
ord-f22669528cf34d72878231a3ad06e0c0
Source dataset
uspto-grants-1977_05
Patent number
US04021207

Reaction notes

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