2,6-二溴-1,4-苯二胺

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 20 g of 2,6-Dibromo-4-nitroaniline are taken up in 250 ml of ethanol, 250 ml of ethyl acetate, 100 ml of dimethylformamide and 90 ml of methylene chloride and, after addition of 3.3 g of 5% moist platinum/active carbon catalyst, hydrogenated at room temperature under 50 psi for one hour. The solvent is then distilled off in a rotary evaporator, and the residue is triturated with diethyl ether, filtered off with suction and washed several times with petroleum ether. The solvent is then distilled off in a rotary evaporator the residue is triturated with diethyl ether filtered off with suction washed several times with petroleum ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3.0 g of 2,6-dibromo-4-nitro-aniline are dissolved in 150 ml of ethanol, 150 ml of ethyl acetate and 30 ml of dimethylformamide and, after addition of 0.5 g of platinum-on-charcoal (5%), are hydrogenated in a Parr apparatus at room temperature under a hydrogen pressure of 1.5 bar for 1 hour. After cooling, the mixture is filtered, the solvent is distilled off in a rotary evaporator and the residue is purified by column chromatography. are hydrogenated in a Parr apparatus at room temperature under a hydrogen for 1 hour After cooling the mixture is filtered the solvent is distilled off in a rotary evaporator the residue is purified by column chromatography

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3.0 g of 2,6-dibromo-4-nitro-aniline are dissolved in 150 ml of ethanol, 150 ml of ethyl acetate and 30 ml of dimethylformamide and, after addition of 0.5 g of platinum-on-charcoal (5%), are hydrogenated in a Parr apparatus at room temperature under a hydrogen pressure of 1.5 bar for 1 hour. After cooling, the mixture is filtered, the solvent is distilled off in a rotary evaporator and the residue is purified by column chromatography. are hydrogenated in a Parr apparatus at room temperature under a hydrogen for 1 hour After cooling the mixture is filtered the solvent is distilled off in a rotary evaporator the residue is purified by column chromatography

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 20 g of 2,6-Dibromo-4-nitroaniline are taken up in 250 ml of ethanol, 250 ml of ethyl acetate, 100 ml of dimethylformamide and 90 ml of methylene chloride and, after addition of 3.3 g of 5% moist platinum/active carbon catalyst, hydrogenated at room temperature under 50 psi for one hour. The solvent is then distilled off in a rotary evaporator, and the residue is triturated with diethyl ether, filtered off with suction and washed several times with petroleum ether. The solvent is then distilled off in a rotary evaporator the residue is triturated with diethyl ether filtered off with suction washed several times with petroleum ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 20 g of 2,6-Dibromo-4-nitroaniline are taken up in 250 ml of ethanol, 250 ml of ethyl acetate, 100 ml of dimethylformamide and 90 ml of methylene chloride and, after addition of 3.3 g of 5% moist platinum/active carbon catalyst, hydrogenated at room temperature under 50 psi for one hour. The solvent is then distilled off in a rotary evaporator, and the residue is triturated with diethyl ether, filtered off with suction and washed several times with petroleum ether. The solvent is then distilled off in a rotary evaporator the residue is triturated with diethyl ether filtered off with suction washed several times with petroleum ether

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3.0 g of 2,6-dibromo-4-nitroaniline are dissolved in 150 ml of ethanol, 150 ml of ethyl acetate and 30 ml of dimethylformamide and, after addition of 0.5 g of platinum on carbon (5%), hydrogenated under a pressure of 1.5 bar of hydrogen in a Parr apparatus at room temperature for 1 hour. Cooling is followed by filtration, the solvent is distilled off in a rotary evaporator, and the residue is purified by column chromatography. Cooling is followed by filtration the solvent is distilled off in a rotary evaporator the residue is purified by column chromatography

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3.0 g of 2,6-dibromo-4-nitro-aniline are dissolved in 150 ml of ethanol, 150 ml of ethyl acetate and 30 ml of dimethylformamide and, after addition of 0.5 g of platinum-on-charcoal (5%), are hydrogenated in a Parr apparatus at room temperature under a hydrogen pressure of 1.5 bar for 1 hour. After cooling, the mixture is filtered, the solvent is distilled off in a rotary evaporator and the residue is purified by column chromatography. are hydrogenated in a Parr apparatus at room temperature under a hydrogen for 1 hour After cooling the mixture is filtered the solvent is distilled off in a rotary evaporator the residue is purified by column chromatography

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 20 g of 2,6-Dibromo-4-nitroaniline are taken up in 250 ml of ethanol, 250 ml of ethyl acetate, 100 ml of dimethylformamide and 90 ml of methylene chloride and, after addition of 3.3 g of 5% moist platinum/active carbon catalyst, hydrogenated at room temperature under 50 psi for one hour. The solvent is then distilled off in a rotary evaporator, and the residue is triturated with diethyl ether, filtered off with suction and washed several times with petroleum ether. The solvent is then distilled off in a rotary evaporator the residue is triturated with diethyl ether filtered off with suction washed several times with petroleum ether