Reaction #481611

ord-281edd52038f459f88555e5efe0d8eb4

Solvents

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherAfter leaving for 24 hours
  2. 2
    Filtrationthe deposited white crystal was collected by filtration
  3. 3
    Washwas washed with ether
  4. 4
    OtherThe powder was dried by a vacuum drier at 30° C. for six hours

Procedure

In a 300 ml three-necked flask, 2 g of tetrahydroxythiophene was dissolved in 20 ml of acetone. To the solution, 4.87 g of 1-bromo-3,3-dimethy 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 5.15 g of 2-oxo-3,3-dimethylbutyl-thiacyclopentanium bromide (yield: 75.0%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06602647B2uspto-grants-2003_08