Cyclopentadiene → Cyclopentene

HRID 1731090Notes

Reaction equation

HRID 1731090 reaction equation
[CH:1]1[CH2:5][CH:4]=[CH:3][CH:2]=1.[H][H]>[Pd]>[CH:1]1[CH2:5][CH2:4][CH2:3][CH:2]=1.[CH:5]1[CH2:4][CH:3]=[CH:2][CH:1]=1

Participants

5

Reactant 2

HCID 7612Cyclopentadiene2×HCID 178418361HCID 178418361, compound2×

Product 2

HCID 7612CyclopentadieneHCID 8882CyclopenteneYield 90%

Reagents, catalysts & solvents 1

HCID 23938PalladiumCatalyst

Procedure

reacting the purified cyclopentadiene of step (B) with hydrogen gas in the ratio of 1 to 1.5 mol hydrogen to 1 mol cyclopentadiene, in the presence of a palladium catalyst on a carrier and at a temperature of 50° to 200° C and at substantially ordinary atmospheric pressure thereby to produce a conversion ratio of 90 to 98% cyclopentene, remainder unreacted cyclopentadiene;

Sources & evidence

ORD record
ord-9ed257631a61480389e6ca0c6ff55f81
Source dataset
uspto-grants-1976_11
Patent number
US03994986

Reaction notes

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