Reaction #53246

Reaction equation

Tetrahydrothiophene

1-bromo-3,3-dimethyl-2-butanone

→

2-oxo-3,3-dimethylbutyltetrahydrothiophenium bromide

Yield 80.4%

Solvents

acetonitrile

Conditions

Workup

1. 1
   Othera powder was precipitated
2. 2
   workup.ADDITIONAfter adding 100 ml of ethyl acetate to the reaction solution
3. 3
   Filtrationthe powder was filtered out
4. 4
   Washwashed with ethyl acetate
5. 5
   Otherdried

Procedure

Tetrahydrothiophene (11.8 g) was dissolved in 100 ml of acetonitrile, and 20 g of 1-bromo-3,3-dimethyl-2-butanone was slowly added to the above solution. The reaction solution was stirred at room temperature for two days, thereby a powder was precipitated. After adding 100 ml of ethyl acetate to the reaction solution, the powder was filtered out, washed with ethyl acetate and dried, thereby 24 g of 2-oxo-3,3-dimethylbutyltetrahydrothiophenium bromide was obtained.

Source