thiane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a 100 ml three-necked flask, 4 g of pentamethylene sulfide was dissolved in 40 ml of acetone. To the solution, 6 g of l-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 7.2 g of 2-oxobutyl-thiacyclohexanium bromide (yield: 72.5%). After leaving for 24 hours the deposited white crystal was collected by filtration was washed with ether The powder was dried by a vacuum drier at 30° C. for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The synthesis was carried out under radiation from a yellow lamp. A 100-millilitter three-port flask was prepared. Using the flask, 4 grams of pentamethylenesulfide was dissolved in 40 milli-litter of acetone. 6 grams of 1-bromo-2-butanone was dropped into the solution over agitation. After 24 hours, white crystal was precipitated, and was filtrated. The white crystal was pulverized, and the pulverized white crystal was washed in ether. The resultant crystal was dried by using a low-pressure drier at 30 degrees in centigrade for six hours. Then, 7.2 grams of 2-oxobutyl-thiacyclohexanium bromide was obtained. The yield was 72.5%. The synthesis was carried out under radiation from a yellow lamp A 100-millilitter three-port flask was prepared white crystal was precipitated was filtrated the pulverized white crystal was washed in ether The resultant crystal was dried drier at 30 degrees for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The synthesis was carried out under radiation from a yellow lamp. A 100-millilitter three-port flask was prepared. Using the flask, 4 grams of pentamethylenesulfide was dissolved in 40 milli-litter of acetone. 6 grams of 1-bromo-2-butanone was dropped into the solution over agitation. After 24 hours, white crystal was precipitated, and was filtrated. The white crystal was pulverized, and the pulverized white crystal was washed in ether. The resultant crystal was dried by using a low-pressure drier at 30 degrees in centigrade for six hours. Then, 7.2 grams of 2-oxobutyl-thiacyclohexanium bromide was obtained. The yield was 72.5%. The synthesis was carried out under radiation from a yellow lamp A 100-millilitter three-port flask was prepared white crystal was precipitated was filtrated the pulverized white crystal was washed in ether The resultant crystal was dried drier at 30 degrees for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a 100 ml three-necked flask, 4 g of pentamethylene sulfide was dissolved in 40 ml of acetone. To the solution, 6 g of l-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 7.2 g of 2-oxobutyl-thiacyclohexanium bromide (yield: 72.5%). After leaving for 24 hours the deposited white crystal was collected by filtration was washed with ether The powder was dried by a vacuum drier at 30° C. for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a 100 ml three-necked flask, 4 g of pentamethylene sulfide was dissolved in 40 ml of acetone. To the solution, 6 g of l-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 7.2 g of 2-oxobutyl-thiacyclohexanium bromide (yield: 72.5%). After leaving for 24 hours the deposited white crystal was collected by filtration was washed with ether The powder was dried by a vacuum drier at 30° C. for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The synthesis was carried out under radiation from a yellow lamp. A 100-millilitter three-port flask was prepared. Using the flask, 4 grams of pentamethylenesulfide was dissolved in 40 milli-litter of acetone. 6 grams of 1-bromo-2-butanone was dropped into the solution over agitation. After 24 hours, white crystal was precipitated, and was filtrated. The white crystal was pulverized, and the pulverized white crystal was washed in ether. The resultant crystal was dried by using a low-pressure drier at 30 degrees in centigrade for six hours. Then, 7.2 grams of 2-oxobutyl-thiacyclohexanium bromide was obtained. The yield was 72.5%. The synthesis was carried out under radiation from a yellow lamp A 100-millilitter three-port flask was prepared white crystal was precipitated was filtrated the pulverized white crystal was washed in ether The resultant crystal was dried drier at 30 degrees for six hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a 100 ml three-necked flask, 4 g of pentamethylene sulfide was dissolved in 40 ml of acetone. To the solution, 6 g of l-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 7.2 g of 2-oxobutyl-thiacyclohexanium bromide (yield: 72.5%). After leaving for 24 hours the deposited white crystal was collected by filtration was washed with ether The powder was dried by a vacuum drier at 30° C. for six hours