Phosphorus tribromide → 1-Bromo-3-methyl-4-nitro-2-butene

HRID 1856494Notes

Reaction equation

HRID 1856494 reaction equation
[N+:1]([CH2:4][C:5]([CH3:9])=[CH:6][CH2:7]O)([O-:3])=[O:2].P(Br)(Br)[Br:11]>C1C=CC=CC=1>[Br:11][CH2:7][CH:6]=[C:5]([CH3:9])[CH2:4][N+:1]([O-:3])=[O:2]

Participants

4

Reactant 2

HCID 24614Phosphorus tribromideHCID 544391273-Methyl-4-nitrobut-2-en-1-ol

Product 1

HCID 544497411-Bromo-3-methyl-4-nitro-2-butene

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

To a solution of 0.1 Mol 4-nitro-3-methyl-2-butenol in benzene at 5° C. was added dropwise 0.036 Mol of phosphorous tribromide. The solvent was evaporated and the dark residue distilled through a vigreux column. Bp 100°/1 mm Hg.

Workup

  1. customThe solvent was evaporated
  2. distillationthe dark residue distilled through a vigreux column

Sources & evidence

ORD record
ord-0ff06937011e41db9a7c0d003bc23878
Source dataset
uspto-grants-1980_08
Patent number
US04219660

Reaction notes

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