1-(4-pyrrolidin-1-ylbut-2-ynyl)pyrrolidin-2-one

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: A solution containing 21.0 g. (0.10 mole) of 1-(4-pyrrolidino-2-butynyl)-2-pyrrolidinone dissolved in 205 ml. of absolute ethanol was hydrogenated in a bottle-type hydrogenator over 0.6 g. of platinum oxide catalyst. When the theoretical quantity of hydrogen was absorbed, the catalyst was removed by filtration and the filtrate was removed under reduced pressure. Upon distllation, the product, N-[4-(1-pyrrolidinyl)-butyl]-2-pyrrolidinone, was obtained as a clear oil boiling at 118° C. at 0.05 mm.; ND25 = 1.4922. A solution containing 21.0 g When the theoretical quantity of hydrogen was absorbed the catalyst was removed by filtration the filtrate was removed under reduced pressure

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

Procedure: A solution containing 24.7 g. (0.12 mole) of 1-(4-pyrrolidino-2-butynyl)-2-pyrrolidinone dissolved in 250 ml. of pyridine was hydrogenated in a bottle-type hydrogenator over 5 g. of 2% palladium-on-strontium carbonate catalyst. When the theoretical quantity of hydrogen was absorbed, the catalyst was removed by filtration and the solvent was removed under reduced pressure. Upon distillation and chromatographic separation, the product, N-[4-(1-pyrrolidinyl)-2-butenyl]-pyrrolidinone, was obtained as a clear oil distilling at 107° C. at 0.05 mm. A solution containing 24.7 g When the theoretical quantity of hydrogen was absorbed the catalyst was removed by filtration the solvent was removed under reduced pressure Upon distillation and chromatographic separation

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

Procedure: A solution containing 24.7 g. (0.12 mole) of 1-(4-pyrrolidino-2-butynyl)-2-pyrrolidinone dissolved in 250 ml. of pyridine was hydrogenated in a bottle-type hydrogenator over 5 g. of 2% palladium-on-strontium carbonate catalyst. When the theoretical quantity of hydrogen was absorbed, the catalyst was removed by filtration and the solvent was removed under reduced pressure. Upon distillation and chromatographic separation, the product, N-[4-(1-pyrrolidinyl)-2-butenyl]-pyrrolidinone, was obtained as a clear oil distilling at 107° C. at 0.05 mm. A solution containing 24.7 g When the theoretical quantity of hydrogen was absorbed the catalyst was removed by filtration the solvent was removed under reduced pressure Upon distillation and chromatographic separation

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

Procedure: A solution containing 21.0 g. (0.10 mole) of 1-(4-pyrrolidino-2-butynyl)-2-pyrrolidinone dissolved in 205 ml. of absolute ethanol was hydrogenated in a bottle-type hydrogenator over 0.6 g. of platinum oxide catalyst. When the theoretical quantity of hydrogen was absorbed, the catalyst was removed by filtration and the filtrate was removed under reduced pressure. Upon distllation, the product, N-[4-(1-pyrrolidinyl)-butyl]-2-pyrrolidinone, was obtained as a clear oil boiling at 118° C. at 0.05 mm.; ND25 = 1.4922. A solution containing 21.0 g When the theoretical quantity of hydrogen was absorbed the catalyst was removed by filtration the filtrate was removed under reduced pressure

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

Procedure: A solution containing 24.7 g. (0.12 mole) of 1-(4-pyrrolidino-2-butynyl)-2-pyrrolidinone dissolved in 250 ml. of pyridine was hydrogenated in a bottle-type hydrogenator over 5 g. of 2% palladium-on-strontium carbonate catalyst. When the theoretical quantity of hydrogen was absorbed, the catalyst was removed by filtration and the solvent was removed under reduced pressure. Upon distillation and chromatographic separation, the product, N-[4-(1-pyrrolidinyl)-2-butenyl]-pyrrolidinone, was obtained as a clear oil distilling at 107° C. at 0.05 mm. A solution containing 24.7 g When the theoretical quantity of hydrogen was absorbed the catalyst was removed by filtration the solvent was removed under reduced pressure Upon distillation and chromatographic separation