(1E)-2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (prepared according to the procedure of E. Raleigh, U.S. Pat. No. 3,557,089) (6.0 g, 40 mmol), styrene (6.0 g, 60 mmol) in toluene (15 mL) was added a solution of potassium hydrogen carbonate (5.0 g, 50 mmol) in water (25 mL) over 1 h, while keeping the reaction temperature between 7 and 10° C. The reaction mixture was diluted with 10 mL of toluene, and stirred for an additional 10 minutes. The organic layer was separated and washed with water. The organic layer was concentrated under reduced pressure until no styrene remained to give 8.7 g of the title compound as a light yellow oil. This compound was of sufficient purity to use in subsequent reactions. the reaction temperature between 7 and 10° C The organic layer was separated washed with water The organic layer was concentrated under reduced pressure until no styrene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (prepared according to the procedure of E. Raleigh, U.S. Pat. No. 3,557,089) (6.0 g, 40 mmol), styrene (6.0 g, 60 mmol) in toluene (15 mL) was added a solution of potassium hydrogen carbonate (5.0 g, 50 mmol) in water (25 mL) over 1 h, while keeping the reaction temperature between 7 and 10° C. The reaction mixture was diluted with 10 mL of toluene, and stirred for an additional 10 minutes. The organic layer was separated and washed with water. The organic layer was concentrated under reduced pressure until no styrene remained to give 8.7 g of the title compound as a light yellow oil. This compound was of sufficient purity to use in subsequent reactions. the reaction temperature between 7 and 10° C The organic layer was separated washed with water The organic layer was concentrated under reduced pressure until no styrene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (prepared according to the procedure of E. Raleigh, U.S. Pat. No. 3,557,089) (6.0 g, 40 mmol) and styrene (6.0 g, 60 mmol) in toluene (15 mL) was added a solution of potassium hydrogen carbonate (5.0 g, 50 mmol) in water (25 mL) over 1 h, while keeping the reaction temperature between 7 and 10° C. The reaction mixture was diluted with 10 mL of toluene and stirred for an additional 10 minutes. The organic layer was separated and washed with water. The organic layer was concentrated under reduced pressure until no styrene remained to give 8.7 g of the title compound as a light yellow oil. This compound was of sufficient purity to use in subsequent reactions. the reaction temperature between 7 and 10° C The organic layer was separated washed with water The organic layer was concentrated under reduced pressure until no styrene

反応条件: temp:10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A 1000-mL round bottom flask equipped with a mechanical stirrer, thermometer and addition funnel was charged with 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (94.0 g, 0.62 mol) and a solution of 2,6-difluorostyrene (84.0 g, 0.60 mol) in chlorobenzene (275 g). The reaction mixture was cooled to 10° C., and a solution of potassium bicarbonate (70 g, 0.70 mol) in water (350 mL) was added dropwise over 1 h while maintaining the reaction temperature between 10 to 15° C. When gas chromatography analysis of the reaction mixture showed about 3% of 2-(dimethylamino)-N-hydroxy-2-oxo-ethanimidoyl chloride remaining, water (200 mL) was added to the reaction mixture. The layers were separated, and the organic layer was washed with water (300 mL) and concentrated under reduced pressure. Toluene was added to the resulting residu, and the mixture was again concentrated under reduced pressure to provide the title compound as an oil (144 g). A 1000-mL round bottom flask equipped with a mechanical stirrer thermometer and addition funnel while maintaining the reaction temperature between 10 to 15° C was added to the reaction mixture The layers were separated the organic layer was washed with water (300 mL) concentrated under reduced pressure Toluene was added to the resulting residu the mixture was again concentrated under reduced pressure

反応条件: temp:10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 1000-mL round bottom flask equipped with a mechanical stirrer, thermometer and addition funnel were added 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (94.0 g, 0.62 mol) and a solution of 2,6-difluorostyrene (84.0 g, 0.60 mol) in chlorobenzene (275 g). The reaction mixture was cooled to 10° C., and then a solution of potassium bicarbonate (70 g, 0.70 mol) in water (350 mL) was added dropwise over 1 h while maintaining the temperature between 10 to 15° C. When gas chromatography analysis of the reaction mixture showed about 3% of 2-(dimethylamino)-N-hydroxy-2-oxo-ethanimidoyl chloride remaining, water (200 mL) was added to the reaction mixture, and the layers were separated. The organic layer was washed with water (300 mL) and concentrated under reduced pressure. Toluene was added to the resulting residue, and the mixture was concentrated under reduced pressure to provide the title compound as an oil (144g). To a 1000-mL round bottom flask equipped with a mechanical stirrer thermometer and addition funnel while maintaining the temperature between 10 to 15° C was added to the reaction mixture the layers were separated The organic layer was washed with water (300 mL) concentrated under reduced pressure Toluene was added to the resulting residue the mixture was concentrated under reduced pressure

反応条件: temp:10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 1 L round bottom flask equipped with a mechanical stirrer, thermometer and addition funnel was added 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (94.0 g, 0.62 mol) and 2,6-difluorostyrene (84.0 g, 0.60 mol) in chlorobenzene (275 g). The reaction mixture was cooled to 10° C., and then potassium bicarbonate (70 g, 0.70 mol) in water (350 mL) was added dropwise over 1 h while maintaining the temperature between 10 and 15° C. When gas chromatography analysis of the reaction mixture showed about 3% of 2-(dimethylamino)-N-hydroxy-2-oxo-ethanimidoyl chloride remaining, water (200 mL) was added to the reaction mixture and the layers were separated. The organic layer was washed with water (300 mL) and concentrated under reduced pressure. Toluene was added to the resulting residue and the mixture was concentrated under reduced pressure to provide the title compound as an oil (144 g). To a 1 L round bottom flask equipped with a mechanical stirrer thermometer and addition funnel while maintaining the temperature between 10 and 15° C was added to the reaction mixture the layers were separated The organic layer was washed with water (300 mL) concentrated under reduced pressure Toluene was added to the resulting residue the mixture was concentrated under reduced pressure

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (prepared according to the procedure of E. Raleigh, U.S. Pat. No. 3,557,089) (6.0 g, 40 mmol), styrene (6.0 g, 60 mmol) in toluene (15 mL) was added a solution of potassium hydrogen carbonate (5.0 g, 50 mmol) in water (25 mL) over 1 h, while keeping the reaction temperature between 7 and 10° C. The reaction mixture was diluted with 10 mL of toluene, and stirred for an additional 10 minutes. The organic layer was separated and washed with water. The organic layer was concentrated under reduced pressure until no styrene remained to give 8.7 g of the title compound as a light yellow oil. This compound was of sufficient purity to use in subsequent reactions. the reaction temperature between 7 and 10° C The organic layer was separated washed with water The organic layer was concentrated under reduced pressure until no styrene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 2-(dimethylamino)-N-hydroxy-2-oxoethanimidoyl chloride (prepared according to the procedure of E. Raleigh, U.S. Pat. No. 3,557,089) (6.0 g, 40 mmol), styrene (6.0 g, 60 mmol) in toluene (15 mL) was added a solution of potassium hydrogen carbonate (5.0 g, 50 mmol) in water (25 mL) over 1 h, while keeping the reaction temperature between 7 and 10° C. The reaction mixture was diluted with 10 mL of toluene, and stirred for an additional 10 minutes. The organic layer was separated and washed with water. The organic layer was concentrated under reduced pressure until no styrene remained to give 8.7 g of the title compound as a light yellow oil. This compound was of sufficient purity to use in subsequent reactions. the reaction temperature between 7 and 10° C The organic layer was separated washed with water The organic layer was concentrated under reduced pressure until no styrene