N'-tert-butylethane-1,2-diamine

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

Procedure: A solution of 10.7 g (0.035 mol) of ethyl 4,5-diphenylpyrazole-1-acetate of example 1 in 10.9 g (0.094 mol) of 2-[(1,1-dimethylethyl)amino]ethanamine was heated with about 50 mg of sodium methoxide at about 150° for two hours. The excess amine was stripped off under vacuum and the residue was triturated in acetonitrile. The solid product was filtered off and recrystallized from isopropyl acetate to yield 8.8 g of white crystals, mp 115°-116° C. the residue was triturated in acetonitrile The solid product was filtered off recrystallized from isopropyl acetate

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

Procedure: A solution of 10.7 g (0.035 mol) of ethyl 4,5-diphenylpyrazole-1-acetate of example 1 in 10.9 g (0.094 mol) of 2-[(1,1-dimethylethyl)amino]ethanamine was heated with about 50 mg of sodium methoxide at about 150° for two hours. The excess amine was stripped off under vacuum and the residue was triturated in acetonitrile. The solid product was filtered off and recrystallized from isopropyl acetate to yield 8.8 g of white crystals, mp 115°-116° C. the residue was triturated in acetonitrile The solid product was filtered off recrystallized from isopropyl acetate

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

Procedure: A solution of 10.7 g (0.035 mol) of ethyl 4,5-diphenylpyrazole-1-acetate of example 1 in 10.9 g (0.094 mol) of 2-[(1,1-dimethylethyl)amino]ethanamine was heated with about 50 mg of sodium methoxide at about 150° C. for two hours. The excess amine was stripped off under vacuum and the residue was triturated in acetonitrile. The solid product was filtered off and recrystallized from isopropyl acetate to yield 8.8 g of white crystals, mp 115°-116° C. the residue was triturated in acetonitrile The solid product was filtered off recrystallized from isopropyl acetate

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

Procedure: A mixture of N-cyclohexyl-α-bromophenylacetamide (2.37 g), N-tert-butylethylenediamine (2.00 g), triethylamine (1.12 ml) and toluene (30 ml) was refluxed for 18 hours. The reaction mixture was concentrated and the residue was purified by means of alumina column chromatography (developing solvent, ethyl acetate) and then distilled under reduced pressure to obtain 1.03 g (38.9%) of title compound as a colorless oily product. was refluxed for 18 hours The reaction mixture was concentrated the residue was purified by means of alumina column chromatography (developing solvent, ethyl acetate) distilled under reduced pressure

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

Procedure: A solution of 10.7 g (0.035 mol) of ethyl 4,5-diphenylpyrazole-1-acetate of example 1 in 10.9 g (0.094 mol) of 2-[(1,1-dimethylethyl)amino]ethanamine was heated with about 50 mg of sodium methoxide at about 150° for two hours. The excess amine was stripped off under vacuum and the residue was triturated in acetonitrile. The solid product was filtered off and recrystallized from isopropyl acetate to yield 8.8 g of white crystals, mp 115°-116° C. the residue was triturated in acetonitrile The solid product was filtered off recrystallized from isopropyl acetate

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

Procedure: A solution of 10.7 g (0.035 mol) of ethyl 4,5-diphenylpyrazole-1-acetate of example 1 in 10.9 g (0.094 mol) of 2-[(1,1-dimethylethyl)amino]ethanamine was heated with about 50 mg of sodium methoxide at about 150° for two hours. The excess amine was stripped off under vacuum and the residue was triturated in acetonitrile. The solid product was filtered off and recrystallized from isopropyl acetate to yield 8.8 g of white crystals, mp 115°-116° C. the residue was triturated in acetonitrile The solid product was filtered off recrystallized from isopropyl acetate