N'-benzoyl-N'-tert-butylbenzohydrazide

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

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

実験手順: N'-t-butyl-N,N'-dibenzoylhydrazine (2 g, 0.007 M) was stirred at room temperature in a two phase system of toluene-50% sodium hydroxide with 100 mg of phase transfer catalyst (tetra-n-butylammonium hydrogen sulfate). Methoxymethyl chloride (1.2 g, 0.015 M) was added dropwise and the mixture was stirred 3 hours. The layers were separated and the toluene layer was washed several times with water (until the water washes were neutral). The toluene solution was dried over anhydrous magnesium sulfate and the toluene removed under vacuum to afford N-methoxymethyl-N'-t-butyl-N,N'-dibenzoylhydrazine as a thick oil. The layers were separated the toluene layer was washed several times with water (until the water washes The toluene solution was dried over anhydrous magnesium sulfate the toluene removed under vacuum

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

実験手順: To a stirred solution of N'-t-butyl-N,N'-dibenzoylhydrazine (3 g, 0.011 M) in DMF (30 ml) at room temperature under nitrogen was added portionwise sodium hydride (60% oil dispersion) (0.5 g, 0.012 M). The mixture was stirred at room temperature for 0.5 hours, and then allyl iodide (1.8 g, 0.01 M) was added dropwise. The reaction mixture was warmed to 60° C. and stirred for 2 hours. The mixture was then diluted with water (50 ml), neutralized with 10% HCl, and the product extracted into methylene chloride (50 ml). The methylene chloride layer was washed with water (5×20 ml), dried over anhydrous magnesium sulfate, and the methylene chloride removed under vacuum to afford N-allyl-N'-t-butyl-N,N'-dibenzoylhydrazine as an oil. The reaction mixture was warmed to 60° C. stirred for 2 hours the product extracted into methylene chloride (50 ml) The methylene chloride layer was washed with water (5×20 ml) dried over anhydrous magnesium sulfate the methylene chloride removed under vacuum

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

実験手順: To a stirred solution of N'-t-butyl-N,N'-dibenzoylhydrazine (2 g, 0.006 M) in DMF (25 ml) at room temperature under nitrogen was added portionwise sodium hydride (60% oil dispersion) (0.3 g, 0.007 M). The mixture was stirred at room temperature for 0.5 hours, and then benzyl bromide (1.2 g, 0.007 M) was added dropwise. The reaction mixture was warmed to 60° C. and allowed to stir for 2 hours. The mixture was then diluted with water (50 ml), neutralized with 10% HCl, and the product extracted into methylene chloride (50 ml). The methylene chloride layer was washed with water (5×20 ml), dried over anhydrous magnesium sulfate, and the methylene chloride removed under vacuum to afford N-benzyl-N'-t-butyl-N,N'-dibenzoylhydrazine as an oil. The reaction mixture was warmed to 60° C. to stir for 2 hours the product extracted into methylene chloride (50 ml) The methylene chloride layer was washed with water (5×20 ml) dried over anhydrous magnesium sulfate the methylene chloride removed under vacuum

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

実験手順: To a stirred solution of N'-t-butyl-N,N'-dibenzoylhydrazine (2.5 g, 0.008 M) in dimethylformamide (DMF) (30 ml) at room temperature under nitrogen was added portionwise sodium hydride (60% oil dispersion) (0.4 g, 0.009 M). The mixture was stirred at room temperature for 0.5 hours, and then methyl iodide (1.0 g, 0.008 M) was added dropwise. The reaction mixture was allowed to stir for 1 hour. The mixture was then diluted with water (50 ml), neutralized with 10% HCl, and the product extracted into methylene chloride (50 ml). The methylene chloride layer was washed with water (5×20 ml), dried over anhydrous magnesium sulfate, and the methylene chloride removed under vacuum to afford N-methyl-N'-t-butyl-N,N'-dibenzoylhydrazine as an oil. to stir for 1 hour the product extracted into methylene chloride (50 ml) The methylene chloride layer was washed with water (5×20 ml) dried over anhydrous magnesium sulfate the methylene chloride removed under vacuum

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

実験手順: The 1,1-dimethylethylhydrazine oxalate (2 g) was dissolved in toluene and neutralized with 50% aqueous sodium hydroxide. To this solution was added benzoyl chloride (4.02 g) and sodium hydroxide (50% Aq. solution) (2.45 g) at 25° C. The reaction mixture was warmed to room temperature and stirred 3 hours. The mixture was diluted with hexane and filtered to afford the product as a white solid (0.5 g). filtered

反応条件: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a stirred suspension of t-butylhydrazine hydrochloride (1.24 g, 10 mmoles) in toluene (50 ml) at room temperature, was added dropwise a solution of 50% aqueous sodium hydroxide (0.8 g, 10 ml). After 15 minutes, the reaction mixture was cooled to 5° C. and solutions of benzoyl chloride (2.82 gm, 20 ml) in toluene (7 ml) and 50% aqueous sodium hydroxide (1.6 g) were added dropwise and simultaneously from separate addition funnels while maintaining the temperature below 10° C. Following the addition, the reaction mixture was warmed to room temperature and stirred for 1 hr. The reaction mixture was diluted with ether and the product isolated by filtration. The product was washed with water and ether and dried. The product was recrystallized from ethermethanol to afford N'-t-butyl-N,N'-dibenzoylhydrazine as a white powder: m.p. 174-176° C. simultaneously from separate addition funnels while maintaining the temperature below 10° C the addition the reaction mixture was warmed to room temperature The reaction mixture was diluted with ether the product isolated by filtration The product was washed with water and ether dried The product was recrystallized from ethermethanol