Reacción #481609

ord-4dff82f26b7b473589abc5342e103442

Ecuación de reacción

CCC(=O)CBr
1-bromo-2-butanone
C1CCSC1
tetrahydrothiophene
CCC(=O)C[S+]1CCCC1.[Br-]
2-oxobutyl-thiacyclopentanium bromide
Rendimiento 72.3%

Reactivos

Ninguno

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    OtroAfter leaving for 24 hours
  2. 2
    Filtraciónthe deposited white crystal was collected by filtration
  3. 3
    Lavadowas washed with ether
  4. 4
    OtroThe powder was dried by a vacuum drier at 30° C. for six hours

Procedimiento

In a 100 ml three-necked flask, 3.5 g of tetrahydrothiophene was dissolved in 40 ml of acetone. To the solution, 6 g of 1-bromo-2-butanone was added dropwise while stirring. After leaving for 24 hours, the deposited white crystal was collected by filtration. The white crystal was ground to a powder, which was washed with ether. The powder was dried by a vacuum drier at 30° C. for six hours to obtain 6.86 g of 2-oxobutyl-thiacyclopentanium bromide (yield: 72.2%).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US06602647B2uspto-grants-2003_08